Speculation,rational expectations,and stability of the foreign exchange market

This paper uses Muth's model of rational expectations to analyze foreign exchange speculation under floating exchange rates when a trade balance ‘J-curve effect’ exists. It extends the existing literature by basing speculative behavior explicity on maximizing behavior, by relating expectations to the underlying structure of the model, i.e. by assuming rational expectations, and by explicitly incorporating uncertainty. A surprising result is that, if speculation takes place, decreases in risk aversion increase the variance of the exchange rate.     

Misalignment of the Baht and its Trade Balance Consequences for Thailand in the 1980s and 1990s

This paper examines Thailand's pre‐crisis exchange rate policy, focusing on the degree of the country's real exchange rate misalignment pre‐crisis and its consequent effects on Thailand's trade balance with its two large trading partners, the US and Japan, in the 1980s and 1990s. Defining misalignment as the difference between actual and ‘equilibrium’ exchange rates, we estimate three key ‘equilibrium’ exchange rates of the Thai baht: (a) the real effective equilibrium exchange rate of the Thai baht against its twenty‐two major trading partners; (b) the bilateral real equilibrium exchange rates of the baht against the US dollar; and (c) the bilateral real equilibrium exchange rate of the baht against the Japanese yen.     

Another case of profitable destabilizing speculation: A comment

This paper examines Williamson's example of destabilizing speculation using an explicit difference equation specification of speculative behavior. The type of nonconvergent cyclical movements of the exchange rate that Williamson describes are found to result from expectations based on a fixed notion of the ‘normal’ rate, together with a specific level of speculation activity. A lower level of speculation results in a divergent system; a higher level in one which is dynamically stable.     

The Economics of Exchange‐Rate Regimes: A Review Essay

The exchange‐rate regime issue has taken centre‐stage in discussions of international economic policy. Much of the profession appears to have been converted to ‘the hypothesis of the vanishing middle regime’; for countries well‐integrated into world capital markets, there is little, if any, middle ground between floating exchange rates and monetary unification. This paper considers the exchange‐rate‐regime issue in the context of recent books on the subject by W. Max Corden and Morris Goldstein. Both authors prescribe managed floating exchange rates, supplemented with inflation targeting, for emerging‐market economies. Under managed floating, and with a credible monetary policy, the public finances in order, and strengthened debt management and prudential regulation, the exchange rate is free to act as a market gauge for assessing policies and as a mode of conflict resolution. Both authors also argue, however, that no exchange‐rate regime is a Holy Grail. Ultimately, a credible exchange‐rate regime depends upon the trust evoked by governments. There is no exchange‐rate regime, whether of the managed‐floating or hard‐fix variety, that can eradicate a history of failed stabilisation attempts.     

A dynamic model of tariffs,output and employment under flexible exchange rates

A portfolio balance model of the open economy with imperfectly flexible wages and rational expectations is used to analyze the macroeconomic effects of commercial policy. Previous analyses have led to the ‘counterintuitive’ and ‘almost inconceivable’ conclusion that, under flexible exchange rates, a tariff is contractionary. By considering a tariff in a dynamic setting and focusing on the process of adjustment, it is shown that there may exist a tradeoff between a tariffs short-run and long-run effects. In certain circumstances, a tariff imposed under flexible exchange rates increases output and employment initially while reducing them subsequently.     

Endogenous norms in wage and price setting and hysteresis in the real exchange rate

Real exchange rates are often ‘disconnected’ from fundamentals. Mean reversion toward equilibrium operates at a slow pace (if it operates at all), and when inflation is low the real exchange rate tracks closely the nominal exchange rate for prolonged periods of time. Using a simple open economy model, we show that including endogenous norms in wage and price setting in an open economy set‐up can lead to hysteresis in the real exchange rate. For a given set of fundamentals, the real exchange rate may settle down at different equilibria and exchange rate policies are not necessarily neutral in the long‐run.     

The identification of destabilizing foreign exchange speculation

This paper develops a technique for directly identifying destabilizing speculation. It shows that previous techniques that have been used in the empirical foreign exchange market literature cannot correctly identify whether or not destabilizing speculation has occurred. It is shown that the ‘true’ underlying model that determines the exchange rate (or any price) must be known before the stability of speculation can be determined empirically. Two appendices are included that (a) present an example of a correct empirical test for the 1973–1975 foreign exchange markets, and (b) show how a rational expectations framework could be used to analyze the question.     

Who Gains From Nominal Devaluation? An Empirical Assessment of Euro‐area Exports and Imports

In early 2013, rumours about the euro‐appreciation gained momentum, which may lead to decreases in exports and increases in imports of the member states. Therefore, we investigate the impact of changes in the nominal euro exchange rate vis‐à‐vis major currencies on export and import performance of nine different euro‐area countries. To disentangle the ‘true’ equilibrium elasticities Stein's unbiased risk estimate (SURE) system error correction models (SSECM) are estimated for nominal exchange rate changes versus the rest of the world or other major currencies. To differentiate between price level changes and changes of the nominal exchange rate, a country's export and import equation is estimated using separately the nominal rate and the relative price/unit labour cost as regressors. Results of Wald tests indicate that assuming both variables to have the same influence on exports and imports is misleading. Whether the relative price/unit labour costs elasticities are high or low depends crucially on which indicator is chosen, while the effect of nominal exchange rate changes can be estimated robustly for all countries in the sample. In particular, France and Spain are hit by a euro‐appreciation since their exports are highly exchange rate elastic. However, for France, this effect is at least partly offset by an also negative exchange rate elasticity of imports.     

A Note on Non‐Stationary Prices

The concepts of ‘real'’ and ‘nominal’ values or ‘real’ and ‘nominal’ rates of profit in the presence of non‐stationary prices are discussed. It is shown that the rate of profit depends on the choice of the numeraire if—and only if—relative prices change over time. In this case there are as many real rates as there are products, factors or bundles of products and factors. Although the rate of profit may vary with the choice of the numeraire, the ranking of processes according to profitability—and hence the choice of technique—is not affected.     

Foreign Exchange Intervention in Emerging Markets: A Survey of Empirical Studies

Nowadays foreign exchange interventions occur in emerging market economies, whereas empirical studies on interventions mainly refer to advanced economies. However, interventions in emerging markets are different from those in advanced economies: they occur ‘regularly’ and central banks have considerable leverage, derived from relatively high reserves, some non‐sterilisation, the central bank’s information advantage and capital controls. Consequently, these interventions often successfully impact the level and volatility of exchange rates. Nevertheless, more research on interventions in emerging markets is needed analysing the influence of heterogeneous institutional circumstances, examining the role of central bank communication and using high‐frequency data.     

Global Volatility and Forex Returns in East Asia*

During 2001–2010, increases in mature market volatility were associated with declines in forex returns for East Asian economies, consistent with an overall ‘flight to safety’ effect. Estimates from GARCH models suggest that a 10 percentage point increase in mature market equity volatility generated an exchange rate depreciation of up to 3/4 percent. This sensitivity rose during a more tranquil subsample for some countries, reflecting their greater integration with global financial markets. Long‐run forex volatility increased in Asian economies after 2008, reflecting the global reach of the financial crisis in mature markets. Unconditional standard deviations estimated from these models provide operational measures of ‘long‐term’ and ‘excess’ volatility in forex markets.     

The emergence of co‐existing debt cycle regimes in an economic growth model

This paper aims to provide a modeling framework that keeps track of the interdependency between firms’ external financing structure and the state of the economy. Accordingly, it is based on the well‐known Kaleckian model which is combined with a modeling strategy of a sentiment index that was proposed by Franke (2012, 2014). The sentiment influences firms’ subjective sales expectations and thus their planned level of investment. As it turns out, the non‐linear model set‐up appears to be flexible in the sense that it is able to generate different interesting dynamic scenarios. It is shown that it may produce (a) sentiment‐driven business cycle fluctuations, including endogenously determined Minsky‐Koo‐kind recessions, and, more interestingly, (b) two distinct economic environments that exist contemporaneously: a ‘low‐’ and ‘high‐indebted’ regime.     

The role of elasticity optimism in choosing an optimal currency basket with applications to Israel

In a world in which exchange rates are floating each country must have some device for measuring the average exchange rate change, whatever exchange rate policy it chooses. The weight for each currency in computing such an average depends on the objective which exchange rate stabilization, or change, is expected to achieve. If balance of trade stability is the desideratum, the optimum weights (optimum currency basket) are shown to be a function of demand elasticities, GNP, trade shares, etc. We derive a loss function measuring the cost of using a ‘wrong’ basket, and compute the value of this function for our ‘optimal’ Israeli basket as a case study.     

EXCHANGE RATE BANDS OF INACTION AND PLAY‐HYSTERESIS IN GERMAN EXPORTS—SECTORAL EVIDENCE FOR SOME OECD DESTINATIONS

A non‐linear model is applied, where suddenly strong spurts of exports occur when changes of the exchange rate go beyond a zone of inaction, which we call ‘play’ area—analogous to mechanical play. We implement an algorithm describing path‐dependent play‐hysteresis into a regression framework. The hysteretic impact of real exchange rates on German exports is estimated based on the period from 1995Q1 to 2010Q3. Looking at some of the main export partners of Germany outside the euro area and some of the most important tradeable sectors we find significant hysteretic effects for a part of the German exports.     

PERIODIC SEQUENCES OF ARBITRAGE: A TALE OF FOUR CURRENCIES

This paper investigates arbitrage chains involving four currencies and four foreign exchange trader‐arbitrageurs. In contrast with the three‐currency case, we find that arbitrage operations when four currencies are present may appear periodic in nature, and not involve smooth convergence to a ‘balanced’ ensemble of exchange rates in which the law of one price holds. The goal of this article is to understand some interesting features of sequences of arbitrage operations, features which might well be relevant in other contexts in finance and economics.     

MODELING STABILIZATION POLICIES IN A FINANCIALLY UNSTABLE ECONOMY

A non‐linear macrodynamic model is presented here to study possible stabilization policies in a financially unstable economy. Three policy rules will be considered, namely the interest rate rule (also called Taylor rule), the money supply rule and the fiscal policy rule. It will be shown that the interest rate rule can be used to stabilize a financially unstable economy on a ‘desired’ growth path. However, when the economy falls into a ‘liquidity trap’, the interest rate rule is ineffective, and therefore the fiscal policy rule should be employed. We also find a rule of money supply that can deal with the problem of government debt while the rest of the economy can still be stabilized on the ‘desired’ growth path.     

Assessing the Performance of ‘Inflation Targeting Lite’ Countries

This paper deals with what is referred to in the literature as the ‘Inflation Targeting Lite’ (ITL) countries. These are a category of emerging countries, whose main characteristics are that they are least developed and small economies that pursue IT. They use inflation targeting to define their monetary policy framework, but for a number of reasons they are not in a position to put top priority to IT in relation to other objectives. This paper deals with a set of ITL countries for which consistent data could be gathered, and for which a date for setting inflation targeting could be discerned. The object of the paper is to study the impact of IT on actual inflation and inflation expectations. We utilise intervention analysis to time series on inflation for a number of ITL countries, which have actually implemented IT. In doing so our main concern is to assess whether, due to the IT intervention, there has been a significant change in the trend corresponding to these series and the extent to which inflation rates have actually been ‘locked‐in’ at low levels after the implementation of IT. Two major results emerge. The first is that ITL countries have been successful in ‘locking‐in’ inflation rates. The second is that non‐IT countries have also been successful in terms of the ‘lock‐in’ effect. Our overall conclusion, then, is that other factors in addition to IT underpin the apparent success of the control of inflation.     

Investigating the gap between citizens' sustainability attitudes and food purchasing behaviour: empirical evidence from Brazilian pork consumers

Consumers worldwide are increasingly concerned with sustainable production and consumption. Recently, a comprehensive study ranked 17 countries in regard to their environmentally friendly behaviour among consumers. Brazil was one of the top countries in the list. Yet, several studies highlight significant differences between consumers' intentions to consume ethically, and their actual purchase behaviour: the so‐called ‘Attitude‐Behaviour Gap’. In developing countries, few studies have been conducted on this issue. The objective of this study is therefore to investigate the gap between citizens' sustainability‐related attitudes and food purchasing behaviour using empirical data from Brazil. To this end, Brazilian citizens' attitudes towards pig production systems were mapped through conjoint analysis and their coexistence with relevant pork product‐related purchasing behaviour of consumers was investigated through cluster analysis. The conjoint experiment was carried out with empirical data collected from 475 respondents surveyed in the South and Center‐West regions of Brazil. The results of the conjoint analysis were used for a subsequent cluster analysis in order to identify clusters of Brazilian citizens with diversified attitudes towards pig production systems, using socio‐demographics, attitudes towards sustainability‐related themes that are expected to influence the way they evaluate pig production systems, and consumption frequency of various pork products as clusters' background information. Three clusters were identified as ‘indifferent’, ‘environmental conscious’ and ‘sustainability‐oriented’ citizens. Although attitudes towards environment and nature had indeed an influence on citizens' specific attitudes towards pig farming at the cluster level, the relationship between ‘citizenship’ and consumption behaviour was found to be weak. This finding is similar to previous research conducted with European consumers: what people (in their role of citizens) think about pig production systems does not appear to significantly influence their pork consumption choices. Improvements in the integrated management of this chain would better meet consumers' sustainability‐related expectations towards pig production systems.     

Expectations and Satisfaction in Channel Member Relationships in the Victorian (Australia) Fruit Industry

Abstract

The paper reports findings of research into the dynamics of customer satisfaction formation amongst fruit producers and their distribution channel(s), within the economically important northern Victorian (Australia) fruit industry. The paper suggests reasons why previous approaches to the issue of satisfaction in channel member relationships, which typically utilize constructs of ‘economic’ and ‘non-economic’ satisfaction, may usefully be supplemented by application of the ‘disconfirmation of expectations’ model. The research actually tests a modification of the traditional disconfirmation model that incorporates dimensions of ‘outcome’ and ‘process’ at the levels of expectations, performance and disconfirmation—a ‘dualistic’ model. This had previously been tested only in a radically different business-to business-context, that of advertising creative services. The findings suggest that satisfactory measurement of growers' expectations can be achieved. They also suggest that the disconfirmation model does appear to apply in this previously untested service context, whether unitary measures of expectations and performance, or the dualistic interpretation of expectations/performance, are utilized.