Волатильность Форекс Форум

I am not sure what you mean about volatility and how to measure it but there are some articles/video/indicators:

The Bollinger Bands were created by John Bollinger in the late s. Bollinger studied moving averages and experimented with a new envelope (channel) indicator. This study was one of the first to measure volatility as a dynamic movement. This tool provides a relative definition of price highs/lows in terms of upper and lower bands.

The Bollinger Bands are comprised of three smooth lines. The middle line is the simple moving average, normally set as a period of 20 (number of bar/ticks in a given time period), and is used as a base to create upper/lower bands. The upper band is the middle band added to the given deviation multiplied by a given period moving average. The lower band is the middle band subtracted by the given deviation multiplied by a given period moving averages.

What can we use this for?

1. Trend -- When price moves outside of the bands, it is believed that the current trend will continue.
2. Volatility- The band will expand/contract as the price movement becomes more volatile/or becomes bound into tight trading patterns, respectively.
3. Determine Oversold/Overbought Conditions -- When price continues to hit upper band, the price is deemed overbought (may suggest sell). When price continues to hit lower band, the price is deemed oversold (may suggest buy).

As Dr. Van Tharp states in his book, the advantage of this model is that it standardizes the performance of a portfolio by volatility or in other words does not allow financial instruments with a higher volatility to have a greater affect on performance than financial instruments with a lower volatility and vice versa.

Volatility - indicator for MetaTrader 5

Chaikin Volatility (CHV) - indicator for MetaTrader 5

Hi,

maybe measure it with standard deviation etc.

I would like to see a measurement for volatility and a comparison to other currency pairs.

Currently, over the past candles and maybe with a forecast.

Chaikin Oscillator Colored Area - indicator for MetaTrader 5

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Volatility Connectedness on the Central European Forex Markets

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The Exchange Rate and the Reserve Bank's Role in the Foreign Exchange Market

Last updated:

Australia has a floating exchange rate. This page discusses the Australian dollar exchange rate within the context of the Reserve Bank of Australia's monetary policy framework and the role of the Reserve Bank in the foreign exchange market.

1. What is the Exchange Rate and Why is it Important?

The exchange rate is the price of one currency expressed in terms of another currency. The two most common measures of the Australian dollar exchange rate are:

• the bilateral exchange rate against the US dollar (AUD/USD). Trading of Australian dollars on the foreign exchange market is, like most other currencies, predominantly against the US dollar. The US dollar is also the dominant international funding currency.
• the trade-weighted index (TWI). The TWI is not a price in terms of a single foreign currency, but a price in terms of a weighted average of a basket of currencies. The TWI will therefore give a measure of whether the Australian dollar is rising or falling on average against the currencies of Australia's trading partners. This is often a better measure of general trends in the exchange rate than any one bilateral exchange rate, such as that against the US dollar, since the Australian dollar could be rising against the US dollar but falling against other currencies. The TWI is also subject to less pronounced swings in value compared with the bilateral exchange rate against the US dollar.

The composition of the TWI basket is determined by the relative shares of different countries in Australia's trade, with the weights reviewed annually. The current composition of the TWI is shown in Table 1.

Currency	Weights (%)
Chinese renminbi
Japanese yen
United States dollar
European euro
South Korean won
Singapore dollar
New Zealand dollar
Indian rupee
United Kingdom pound sterling
Malaysian ringgit
Thai baht
New Taiwan dollar
Indonesian rupiah
Vietnamese dong
Hong Kong dollar
Canadian dollar
United Arab Emirates dirham
Papua New Guinea kina
Swiss franc

While the AUD/USD and the Australian dollar TWI often move together, they have diverged at times (Graph 1). One notable divergence occurred during the Asian crisis in , when the AUD/USD exchange rate depreciated by much more than the TWI because the Australian dollar appreciated against the currencies of most of Australia's Asian trading partners.

There are many alternative exchange rate indices, which may be relevant for different purposes. For instance, rather than using the conventional TWI based on (total) trade weights, indices weighted by export shares or import shares separately might be more appropriate in some instances. Alternatively, bilateral trade weights may not provide the best basis for assessing changes in the home country's competitiveness if there are other ‘third’ countries with which the home country trades little, but with which it competes in terms of its exports in international markets. In these instances, a ‘third-country’ export-weighted exchange rate index might be more appropriate. In other circumstances, trade weights – which only include goods and services that are actually traded – could be considered inadequate if they do not correspond to countries' shares of production that could be traded (even if it is not) and hence their influence on world prices. In these instances, a GDP-weighted index may be considered preferable.

It is also worth noting that movements in broad exchange rate indices like the TWI can sometimes mask important developments in individual bilateral exchange rates or in groups of bilateral rates. For example, there has been a marked divergence in trend movements of the Australian dollar against the currencies of the G7 and against Asian currencies excluding Japan, which are the two main groups of countries in the TWI basket. Over the post-float period, the Australian dollar has depreciated against G7 currencies, but has appreciated significantly against other Asian currencies (Graph 2).

Related Reading

Becker C and M Davies (), ‘Developments in the Trade-Weighted Index’, RBA Bulletin October, pp 1–6.

Edwards K, D Fabbro, M Knezevic and M Plumb (), ‘ An Augmented Trade-weighted Index of the Australian Dollar’, RBA Bulletin, February.

Ellis L (), ‘Measuring the Real Exchange Rate: Pitfalls and Practicalities’, RBA Research Discussion Paper

Weights for the TWI

2. Why Does Australia have a Floating Exchange Rate?

Exchange rate policy in Australia shifted through several regimes before the Australian dollar was eventually floated in (Graph 3). From , Australia's currency was pegged to the UK pound, before it was changed to a peg against the US dollar in For much of this period – from to the early s – Australia's exchange rate peg operated as part of a global system of pegged exchange rates, known as the Bretton Woods system. When the Bretton Woods system broke down in the early s, the major advanced economies floated their exchange rates. However, Australia did not follow suit, in part reflecting the fact that, at that time, Australia's financial sector was relatively underdeveloped.

The Australian dollar did, however, become progressively more flexible from around the mid s. In , a decision was made to peg the Australian dollar against the TWI and in this peg was changed from a ‘hard’ peg to a crawling peg. The crawling peg involved regular adjustments to the level of the exchange rate, in contrast to the occasional discrete revaluations and devaluations that had occurred under the previous regimes.

The Australian dollar eventually floated in , for a number of reasons. First, the fixed exchange rate regime made it difficult to control the money supply. Like many other countries at that time, Australia targeted growth in the money supply, under a policy known as ‘monetary targeting’. However, under the fixed and crawling peg arrangements, the Reserve Bank was required to meet all requests to exchange foreign currency for Australian dollars, or vice versa, at the prevailing exchange rate. This meant that the supply of Australian dollars (and therefore the domestic money supply) was affected by changes in the demand for purchases and sales of Australian dollars, which could arise from Australia's international trade and capital flows. While the Reserve Bank could seek to offset these effects (through a process called sterilisation), in practice, this was often difficult to achieve. This ultimately meant that prior to the float there was significant volatility in domestic monetary conditions (Graph 4).

Floating the exchange rate addressed this problem. It meant that one of the final prerequisites for effective domestic monetary policy had been achieved (the other, namely that the government fully finance any budget deficit in the market at market interest rates, had been achieved in the early s when the Australian Government adopted a tender system for issuing bonds). While the ability to gain greater control of domestic monetary conditions was well understood at the time as one of the key benefits of floating the exchange rate, the decision to float in late occurred largely as a result of speculative pressure on the exchange rate. That is, in the lead-up to the float, there were very large capital inflows coming into Australia from speculators betting on an appreciation of the Australian dollar. This was not sustainable and the government had the choice of either tightening capital controls or floating the exchange rate. The latter was chosen as the more desirable course of action.

Consistent with obtaining better control over domestic monetary conditions, the choice of exchange rate regime can also influence the way in which economies cope with external shocks. Take for example, a sharp rise in the terms of trade (the ratio of export prices to import prices), as experienced in Australia's recent mining boom. The combination of a flexible exchange rate and independent monetary policy led to a high exchange rate and high interest rates relative to the rest of the world during that period, both of which played an important role in preserving overall macroeconomic stability. This is in contrast to previous resources booms, which typically ended with an episode of significant inflation.

In summary, the floating exchange rate regime that has been in place since is widely accepted as having been beneficial for Australia. The floating exchange rate has provided a buffer against external shocks – particularly shifts in the terms of trade – allowing the economy to absorb them without generating the large inflationary or deflationary pressures that tended to result under the previous fixed exchange rate regimes. While discretionary changes were made to the value of the Australian dollar under previous regimes in response to developing pressures, it was extremely difficult to calibrate the adjustments to provide an effective buffer against the shocks. The shift to a floating exchange rate has therefore contributed to a reduction in output volatility over the past two decades or so. Importantly, it has also enabled the Reserve Bank to set monetary policy that is best suited to domestic conditions (rather than needing to meet a certain target level for the exchange rate).

Related Reading

Atkin T, M Caputo, T Robinson and H Wang (), ‘Macroeconomic Consequences of Terms of Trade Episodes, Past and Present’, RBA Research Discussion Paper No

Ballantyne A, J Hambur, I Roberts and M Wright (), ‘Financial Reform in Australia and China’, RBA Research Discussion Paper

Debelle G and M Plumb (), ‘The Evolution of Exchange Rate Policy and Capital Controls in Australia’, Asian Economic Papers, 5(2), pp 7–

Lowe P (), ‘The Changing Structure of the Australian Economy and Monetary Policy’, Address to the Australian Industry Group 12th Annual Economic Forum, Sydney, 7 March.

Stevens G (), ‘The Australian Dollar: Thirty Years of Floating’, Address to the Australian Business Economists’ Annual Dinner, Sydney, 21 November.

3. What Determines the Behaviour of the Exchange Rate?

One important determinant of a country's trade-weighted exchange rate over the long run is whether it has a higher or lower inflation rate than its trading partners. The theory of purchasing power parity (PPP) suggests that the exchange rate between two countries will adjust to ensure that purchasing power is equalised in both countries. If a country's inflation rate is persistently higher than that of its trading partners, its trade-weighted exchange rate will tend to depreciate to prevent a progressive loss of competitiveness over time. Graph 5 demonstrates this by showing the relationship between the nominal Australian dollar TWI and the ratio of the Australian consumer price index (CPI) to the average price level of Australia's trading partners. From the mid s through to the end of the s, prices in Australia rose more quickly than prices overseas. The TWI depreciated over the same period, but a large part of this was doing no more than offsetting the cumulatively higher inflation Australia was experiencing. In other words, much of what appears to have been a potential gain in competitiveness due to the lower exchange rate was offset by Australia's relatively poor performance on inflation.

Estimates of real exchange rates adjust for this difference in inflation rates. Between the mid s and the end of the s, when Australia's CPI was rising faster than that of its trading partners, the nominal TWI depreciated by about 50 per cent, whereas the real TWI depreciated by 30 per cent. While still subject to considerable fluctuations, movements in real exchange rates provide a better guide to changes in competitiveness than movements in nominal exchange rates. A pure purchasing power parity theory is limited to the extent that it does not capture structural factors affecting the economy, which have arguably been important in Australia's case over the past decade or so. In recognition of this, one extension of the pure purchasing power parity theory is the Balassa-Samuelson model, which predicts that countries which experience relatively rapid productivity growth in their tradable sectors will experience real exchange rate appreciation (and vice versa). While cross-country productivity differentials may have explained part of Australia's real exchange rate depreciation in the mid to late s, they are less able to explain the appreciation of the Australian dollar over the period from the mid s through to the peak of the mining boom.

Historically, one of the strongest influences on the Australian dollar has been the terms of trade. For example, a rise in the terms of trade as a result of an increase in the prices of commodities (which are an important component of Australia's exports) provides an expansionary impulse to the economy through an increase in income. The increased demand for inputs from the export sector also creates inflationary pressure. An appreciation of the exchange rate, together with higher domestic interest rates, will counteract these influences to some extent, thereby contributing to overall macroeconomic stability.

However, the strength of the relationship between the Australian dollar and the terms of trade has varied over time (Graph 6). In the first 15 years of the floating exchange rate, the relationship was on average one-for-one, but it has since weakened. This weakening has implications for the robustness of models that seek to estimate a ‘fair value’ for the Australian dollar (discussed below). Nevertheless, changes in the terms of trade still play a dominant role in explaining changes in Australia's real exchange rate.

Factors that affect capital transactions are a third major influence on the exchange rate, although their importance has tended to vary over time. There are a range of factors which affect relative rates of return on Australian dollar assets including monetary policy settings, expectations about future economic growth and inflation, the relative risk premium associated with investing in Australian dollar assets, and more broadly, investors' appetite for taking on risk. Anecdotally, there have been a number of periods since the float when relative rates of return were seen as being a major influence. One such episode occurred in the late s, when Australian real interest rates were much higher than those overseas and the exchange rate rose sharply. The second was in the late s, when Australian real interest rates fell below those in the US and the exchange rate depreciated. The third was in the first half of the s, when Australian real interest rates were again notably higher than those in the major economies, as the major economies experienced a downturn and monetary policy was eased in these countries. In the decade following the global financial crisis, relatively high real interest rates in Australia compared with in the major advanced economies were likely to have influenced the Australian dollar. Although this effect may have waned in recent years, particularly as differences in interest rates between Australia and the major advanced economies declined.

Historically, Australian interest rates have generally been higher than those in the major economies, in part because Australian dollar assets have tended to embody a higher risk premium. Changes in the size of the relative risk premium can influence the relative demand for Australian dollar assets and therefore also have a direct effect on the exchange rate. For example, the relative risk premium declined during the European debt crisis, which saw foreign demand for highly rated Australian government debt increase. This was reflected in strong capital inflows to the Australian public sector in and , which are likely to have provided some support to the Australian dollar (though these inflows were somewhat offset by outflows from the private sector over this period, Graph 7).

Empirical models of the exchange rate

While it is widely accepted that attempts to forecast exchange rates are fraught with difficulty, even attempts to model historical movements in exchange rates have met with mixed success. However, compared with some other currencies, efforts to model the Australian dollar exchange rate in the post-float era have been relatively successful in explaining medium-term movements in the currency. Two key determinants of the Australian dollar are the terms of trade and differences in interest rates between Australian and other major advanced economies.

While it is possible to identify some key determinants of the exchange rate, it is important to note that their impact can vary over time. In particular, while the terms of trade have displayed a strong correlation with the exchange rate in the post-float era, there have been periods where this relationship has not been as strong (as discussed above). This relationship was particularly weak in the late s and early s, when Australia's terms of trade was rising but the nominal and real exchange rates both declined substantially. Some part of this decline reflected the substantial appreciation in the US dollar at the time, which was in turn attributable to investors shifting their portfolios towards investment in ‘new economy’ technology assets and away from the so-called ‘old economy’ assets prevalent in Australia. However, the relationship strengthened again during the mining boom, and a notable feature of the period after the mining boom when the Australian dollar depreciated was a decline in the terms of trade.

Differences in interest rates between Australia and other major advanced economies have also helped explain movements in the Australian dollar exchange rate. The extraordinary monetary policy measures undertaken by major advanced economies following the global financial crisis are likely to have supported the Australian dollar. These policies depressed returns on low-risk assets, such as government debt, encouraging investors to search for higher yields, and demand for Australian assets increased. At times, the stock of foreign liabilities, the current account balance or economic growth differentials have been found to have an influence. In part, the changing influence of some of these variables reflects the varying focus of financial market participants.

Related Reading

Battellino R (), ‘Mining Booms and the Australian Economy’, Address to The Sydney Institute, Sydney, 23 February.

Beechey M, N Bharucha, A Cagliarini, D Gruen and C Thompson (), ‘A Small Model of the Australian Macroeconomy’, RBA Research Discussion Paper RDP

Blundell-Wignall A, J Fahrer and A Heath (), ‘The Exchange Rate, International Trade and the Balance of Payments’, in A Blundell-Wignall (ed), Major Influences on the Australian Dollar Exchange Rate, Proceedings of a Conference, Reserve Bank of Australia, Sydney, pp 30–

Chapman B, J Jaaskela and E Smith () ‘A Forward-looking Model of the Australian Dollar’, RBA Bulletin, December.

Chen Y and K Rogoff (), ‘Commodity currencies’, Journal of International Economics, vol. 60(1), pp –

Clifton K and M Plumb (), ‘Intraday Currency Market Volatility and Turnover’, RBA Bulletin, December.

Cockerell L, J Hambur, C Potter, P Smith and M Wright (), ‘Modelling the Australian Dollar’, RBA Research Discussion Paper RDP

D'Arcy P and E Poole (), ‘ Interpreting Market Responses to Economic Data’, RBA Bulletin, September.

Edwards K and M Plumb (), ‘US Economic Data and the Australian Dollar’, RBA Bulletin, July.

Gruen D (), ‘Some Possible Long-term Trends in the Australian Dollar’, RBA Bulletin December, pp 30–

Gruen D and J Wilkinson (), ‘Australia's Real Exchange Rate – Is it Explained by the Terms of Trade or by Real Interest Differentials?’, RBA Research Discussion Paper RDP

Jääskelä, J and P Smith (), ‘Terms of Trade Shocks: What are They and What Do They Do?’, RBA Research Discussion Paper RDP

Kearns J and P Manners (), ‘The Impact of Monetary Policy on the Exchange Rate: A Study Using Intraday Data’, RBA Research Discussion Paper RDP

Meese R and K Rogoff (), ‘Empirical Exchange Rate Models of the Seventies: do they fit out of sample?’, Journal of International Economics, 14(1/2), pp 3–

Reserve Bank of Australia (), ‘ Commodity Prices and the Terms of Trade’, RBA Bulletin, April, pp 1–7.

Stone A, T Wheatley and L Wilkinson (), ‘A Small Model of the Australian Macroeconomy: An Update’, RBA Research Discussion Paper RDP

4. The Exchange Rate and Monetary Policy

The exchange rate plays an important part in considerations of monetary policy in all countries. However, the exchange rate has not served as a target or an instrument of monetary policy in Australia since the s – instead, it is best viewed as part of the transmission mechanism for monetary policy. More generally, the exchange rate serves to buffer the economy from external shocks, such that monetary policy can be directed towards achieving domestic price stability and growth.

Since the early s, Australian monetary policy has been conducted under an inflation targeting framework. Under inflation targeting, monetary policy no longer targets any particular level of the exchange rate. Various measures suggest that exchange rate volatility has been higher in the post-float period (Graph 4, above). However, exchange rate flexibility, together with a number of other economic reforms – including in product and labour markets as well as reforms to the policy frameworks for both fiscal and monetary policy – has likely contributed to a decline in output volatility over this period. In particular, exchange rate fluctuations have played a particularly important role in smoothing the influence of terms of trade shocks. Similar findings have been made for other commodity producing countries.

Both through counterbalancing the influence of external shocks, and more directly, through its influence on domestic incomes and therefore demand, the exchange rate has been an important influence on inflation. Under the previous fixed exchange rate regimes, the Australian economy ‘imported’ inflation from the country (or countries) to which the exchange rate was pegged. However, the floating of the exchange rate meant that changes in world prices no longer had a direct effect on domestic prices: not only did it break the mechanical link between domestic and foreign prices, but it meant that the Reserve Bank was now able to implement independent monetary policy. Instead, under the floating exchange rate regime, movements in the exchange rate have a direct influence on inflation through changes in the price of tradable goods and services – a process commonly referred to as ‘exchange rate pass-through’. The extent of this influence has changed since the float, and since the introduction of inflation targeting. In particular, exchange rate pass-through has become more protracted in aggregate, but is faster and larger for manufactured goods, which are often imported. The observed slowdown in aggregate exchange rate pass-through is not unique to Australia, having been also found in the United Kingdom and the United States, among others.

Related Reading

Atkin T and G La Cava (), ‘The Transmission of Monetary Policy: How Does It Work?’, RBA Bulletin, September.

Chung E, M Kohler and C Lewis (), ‘ The Exchange Rate and Consumer Prices’, RBA Bulletin September Quarter, pp 9–

Grenville S (), ‘Monetary Policy and Inflation Targeting’, in P Lowe (ed), ‘ The Evolution of Monetary Policy: From Money Targets to Inflation Targets’, Proceedings of a Conference, Reserve Bank of Australia, Sydney, pp –

Gruen D and G Stevens (), ‘The Australian Economy in the s’, in D Gruen and S Shrestha (ed), ‘Australian Macroeconomic Performance and Policies in the s’, Proceedings of a Conference, Reserve Bank of Australia, Sydney, pp 1–

Heath A, I Roberts and T Bulman (), ‘The Future of Inflation Targeting’, in C Kent and S Guttmann (eds), ‘Inflation in Australia: Measurement and Modelling’, Proceedings of a Conference, Reserve Bank of Australia, Sydney, pp –

Manalo J, D Perera and D Rees (), ‘Exchange Rate Movements and the Australian Economy’, RBA Research Discussion Paper RDP

Simon J (), ‘The Decline in Australian Output Volatility’ RBA Research Discussion Paper RDP

5. The Foreign Exchange Market

Foreign exchange turnover in Australia is currently around A$ billion a day. According to the most recent global survey of foreign exchange markets (conducted by the Bank for International Settlements in April ) the Australian market is the eighth largest in the world, although the two largest – the United Kingdom and the United States – are much larger than the remainder. About half of the turnover in the Australian foreign exchange market is against the Australian dollar (Graph 8). The remaining half is largely made up of trade in major currencies against the US dollar, although trade in less traditional currencies has continued to expand.

Between and , turnover in the Australian and global markets grew rapidly, supported by increased cross-border investment and trade flows. Following the onset of the global financial crisis, foreign exchange turnover fell in both Australia and in other major markets, driven initially by a decline in foreign exchange (FX) swaps turnover, which was in turn related to reduced cross-border investment activity (FX swaps are transactions in which parties agree to exchange two currencies on a specific date and to reverse the exchange at a later date, and are commonly used to hedge foreign exchange exposures arising from cross-border claims, Graph 9). Subsequently, the collapse in international trade in late also saw turnover in the spot market fall sharply. While between and early , foreign exchange turnover in the Australian market recovered in line with global markets, it dipped again in late amid heightened market uncertainty related to the European sovereign debt crisis. More recently, foreign exchange turnover in Australia has remained relatively stable.

In addition to the traditional market segment (comprising turnover in spot foreign exchange, outright forward contracts and foreign exchange swaps), other ‘non-traditional’ foreign exchange derivatives such as options and currency swaps are also traded in the Australian market. The Australian market processes around A$5 billion of transactions in these non-traditional products every day, covering a wide variety of products, ranging from very simple to more complex designs. Foreign exchange derivatives, including both traditional and non-traditional products, are an important tool for many Australian companies with foreign currency exposures, because they can be used to provide protection against adverse exchange rate movements.

As well as trading in Australia, there is considerable turnover of the Australian dollar in other markets. Global trade in the Australian dollar averaged around US$ billion per day in April (the date of the most recent global survey), making it the fifth most traded currency in the world, and the AUD/USD the fourth most traded currency pair (Graph 10). The size of the market indicates that the exchange rate is being determined in a liquid, active and competitive marketplace.

Related Reading

Cassidy N, K Clifton, M Plumb and B Robertson (), ‘The Australian Foreign Exchange and Derivatives Markets’, RBA Bulletin, January.

Garner M, A Nitschke and D Xu (), ‘Developments in Foreign Exchange and OTC Derivatives Markets’, RBA Bulletin, December.

Guo J, D Ranasinghe and Z Zhang (), ‘Developments in Foreign Exchange and Over-the-counter Derivatives Markets’, RBA Bulletin, December.

Heath A and J Whitelaw (), ‘Electronic Trading and the Australian Foreign Exchange Market’, RBA Bulletin, June.

Nightingale S, C Ossolinski and A Zurawski (), ‘Activity in Global Foreign Exchange Markets’, RBA Bulletin, December.

6. Why Does the Reserve Bank Intervene in the Foreign Exchange Market?

The Bank's approach to foreign exchange market intervention has evolved over the past 30 years as the Australian foreign exchange market has matured. In particular, intervention has become less frequent, as awareness of the benefits of a freely floating exchange rate has grown. These benefits rely in part upon market participants and end-users being able to effectively manage their exchange rate risk, a process requiring access to well-developed foreign exchange markets.

In the period immediately following the float, the market was at an early stage of development and the exchange rate was relatively volatile as a result. As market participants were not always well-equipped to cope with this volatility, the Bank sought to mitigate some of this volatility to lessen its effect on the economy. This period has previously been described as the ‘testing and smoothing’ phase of intervention.

But even before the end of the s, the foreign exchange market had developed significantly, and the need to moderate day-to-day volatility was much diminished. Accordingly, the focus of intervention evolved towards responding to episodes where the exchange rate was judged to have ‘overshot’ the level implied by economic fundamentals and/or when speculative forces appeared to have been dominating the market. This shift resulted in less frequent, but typically larger, transactions than those undertaken in the s (Graph 11).

As the foreign exchange market became increasingly sophisticated and market participants became better equipped to manage volatility, particularly through hedging, the threshold for what constituted an ‘overshooting’ in the exchange rate became much higher: a moderate misalignment was no longer considered sufficient to justify intervention.

More recently, intervention has been in response to episodes that could be characterised by evidence of significant market disorder – that is, instances where market functioning has been impaired to such a degree that it was clear that the observed volatility was excessive – although the Bank continues to retain the discretion to intervene to address gross misalignment of the exchange rate. In particular, on certain days during August and October/November , the Reserve Bank identified trading conditions that had become extremely disorderly, with liquidity deteriorating rapidly in the spot market even though there did not appear to be any new public information, resulting in sharp price movements between trades. Accordingly, on each of these occasions, the Reserve Bank's interventions were designed to improve liquidity in the market and thereby limit disruptive price adjustments.

Related Reading

Becker C and M Sinclair (), ‘Profitability of Reserve Bank Foreign Exchange Operations: Twenty Years After The Float’, RBA Research Discussion Paper RDP

Newman V, C Potter and M Wright (), ‘ Foreign Exchange Market Intervention’, RBA Bulletin, December.

Stevens G (), ‘The Australian Dollar: Thirty Years of Floating’, Address to the Australian Business Economists’ Annual Dinner, Sydney, 21 November.

7. How Does the Reserve Bank Intervene in the Foreign Exchange Market?

When the Reserve Bank intervenes in the foreign exchange market, it creates demand or supply for the Australian dollar by buying or selling Australian dollars against another currency. The Reserve Bank almost always conducts its intervention against the US dollar, owing to the fact that liquidity and turnover are greatest in the Australian dollar/US dollar currency pair. The Reserve Bank has the capacity to deal in foreign exchange markets around the world and in all time zones. The Reserve Bank's foreign exchange intervention transactions to date have been executed almost exclusively in the spot market. If the Reserve Bank chooses to neutralise any resulting effects on domestic liquidity conditions, foreign exchange intervention transactions can be ‘sterilised’ through offsetting transactions in the domestic money market or, as has been typically the case, through the use of foreign exchange swaps.

In large part, the approach taken by the Bank will depend on the precise objective of the intervention and, in particular, the type of signal the Bank wishes to send to the market. By using its discretion in deciding when to transact, the size of the transaction and how the transaction will be conducted, the Reserve Bank is potentially able to elicit different responses from the foreign exchange market. Generally speaking, transactions that are relatively large in size and signalled clearly are expected to have the largest effect on market conditions, with these effects further amplified if trading conditions are relatively illiquid. This is in stark contrast to the routine foreign exchange transactions undertaken by the RBA on behalf of the Government, where the express intention is to have a minimal influence on the exchange rate.

Historically, the Reserve Bank has generally chosen to intervene by transacting in the foreign exchange market in its own name, in order to inform participants of its presence in the market. This ‘announcement effect’ can itself have a significant impact on the exchange rate, as it conveys information to the market about the Reserve Bank's views on the exchange rate from a policy perspective. The intervention transactions are typically executed through the electronic broker market, or through direct deals with banks. Intervention in the broker market could involve the Reserve Bank placing a ‘bid’ or ‘offer’ (which means the market needs to move to that precise level before a deal is struck) but, if it wishes to send a stronger signal, the Reserve Bank would transact immediately in the market, either ‘giving the bid’ or ‘paying the offer’ of the broker. Direct deals with banks are similar, whereby the Reserve Bank would request a ‘two-way’ quote for a fixed amount and either ‘give the bank's bid’ or ‘pay the bank's offer’. The effects of direct transactions with banks are realised over two stages. First, after receiving a direct quote request from the Reserve Bank, banks will adjust their quotes as compensation for holding the currency the Reserve Bank is trying to sell and for bearing the potential risk that the Reserve Bank is simultaneously dealing with other banks (who would also be adjusting their quotes). For example, if the Reserve Bank wants to sell US dollars and purchase Australian dollars, banks will increase their Australian dollar offer quotes. Second, after banks have traded with the Reserve Bank, this can trigger additional price adjustments among market makers in the spot foreign exchange market.

Related Reading

Becker C and M Sinclair (), ‘Profitability of Reserve Bank Foreign Exchange Operations: Twenty Years After The Float’, RBA Research Discussion Paper RDP

Newman V, C Potter and M Wright (), ‘ Foreign Exchange Market Intervention’, RBA Bulletin, December.

8. Has Intervention Been Effective?

It is inherently difficult to quantify the effect of intervention transactions on the exchange rate for at least three key reasons:

1. Interventions usually take place when the exchange rate is moving in the opposite direction to the expected effect of the intervention and it is virtually impossible to know what would have happened to the exchange rate in the absence of the intervention.
2. It may not always be appropriate to measure the success or failure of interventions using a simple metric such as the daily exchange rate movement, nor may it be feasible to develop alternatives.
3. Data which accurately identify the magnitude of genuine intervention transactions have been scarce, with researchers often resorting to the use of imperfect proxies.

These difficulties have led to the development of a number of different methods of attempting to evaluate the effectiveness of intervention, three of which have been employed by Reserve Bank staff in recent years to evaluate the effectiveness of Reserve Bank intervention.

The first (Kearns and Rigobon, ), used the change in the Reserve Bank's intervention policy in the early s (when the Bank ceased to make very small interventions) to identify the contemporaneous relationship between intervention and the exchange rate. This study supported the description of Reserve Bank intervention as ‘leaning against the wind’ – that is, acting to slow or correct excessive trends in the exchange rate. Intervention was found to have a significant effect on the exchange rate, particularly on the day of intervention.

The second (Becker and Sinclair, and Andrew and Broadbent, ) used the ‘profits test’ to evaluate the effectiveness of intervention, as advocated by Friedman (). The application of the profits test relies on the central bank acting as a stabilising long-term speculator. If the objective of the central bank is to limit fluctuations in the exchange rate, this will tend to involve the purchase of the local currency (sale of foreign currency) when the exchange rate is relatively low, and the sale of the local currency (purchase of foreign currency) when the exchange rate is high. If the central bank is successful in ‘buying low’ and ‘selling high’, its intervention should yield a profit. It follows from this that if a central bank has been profitable in its intervention, it must have bought low and sold high, therefore contributing to the stabilisation of the exchange rate. These studies both found that the Reserve Bank's intervention activities have been profitable, and therefore, stabilising.

The third study (Newman, Potter and Wright, ) presented the results of time series econometrics using a unique dataset that specifically addressed problem (iii) above. Notwithstanding the improved dataset, the results of this paper mainly demonstrated the difficulties in drawing strong conclusions about the effectiveness of interventions from time series analysis, owing to some inherent limitations – in particular, problems (i) and (ii) above. Nevertheless, this study does find some weak evidence that the Reserve Bank's interventions have been effective.

Related Reading

Andrew R, and J Broadbent (), ‘Reserve Bank operations in the foreign exchange market: effectiveness and profitability’, RBA Research Discussion Paper No

Becker C and M Sinclair (), ‘Profitability of Reserve Bank Foreign Exchange Operations: Twenty Years After The Float’, RBA Research Discussion Paper RDP

Friedman M (), ‘The case for flexible exchange rates’, Essays on Positive Economics, University of Chicago Press, Chicago, pp –

Kearns J and R Rigobon (), ‘Identifying the Efficacy of Central Bank Interventions: Evidence from Australia’, RBA Research Discussion Paper RDP

Newman V, C Potter and M Wright (), ‘Foreign Exchange Market Intervention’, RBA Bulletin, December.

RBI 'correct' to use forex reserves to tackle rupee volatility: economic adviser

The Reserve Bank of India (RBI) is justified in using the country's foreign exchange reserves to smooth out volatility in the rupee's moves against the dollar, a member of the Economic Advisory Councilsaid on Monday.

"I think that the RBI is correct to use the FX reserves to smooth movement in the INR/USD There is no point targeting a INR/USD level when USD is appreciating against all other majors," Sanjeev Sanyal told the Reuters Global Markets Forum (GMF) in an interview.

"Longer term, we need to maintain overall macro-stability and allow the cycle to play itself out," said Sanyal, who was previously India's chief economic adviser.

The Council he now sits on advises Prime Minister Narendra Modi and his government on economic policy.

The Indian rupee has fallen around % against the dollar year-to-date, to trade near a record low of

The dollar has risen about % against a basket of currencies as markets brace for more U.S. interest rate hikes amid surging inflationary pressures and signs a weakening global economy.

Sanyal also said India's inflation was almost entirely imported and, as an oil importer, something it could do little in the short term to control. Global oil and other energy costs have spiked this year, driven higher by the impact of the war in Ukraine and broader supply chain issues. [O/R]

Sanyal said he believed India's current account deficit was in a comfortable position and, asked if a curb on non-essential imports was being considered, added: "The government will respond flexibly to the situation as it evolves."

Sanyal also said India was treating crypto instruments as assets not currencies, and that their regulation would need global coordination.


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