Foreign output and price shocks and macroeconomic activity in Korea

This paper examines the effects of foreign output and price shocks on output and the price level in Korea. The framework is a nine variable VAR model which includes output, price level, interest rate, real exchange rate, money supply, government expenditures, government debt, and foreign output and price variables. Foreign output and price effects are evaluated through computation of variance decompositions and impulse response functions. The variance decompositions indicate significant effects of foreign output on domestic output and significant effects of foreign prices on domestic output and the price level. The impulse response functions indicate positive short-run effects of foreign output on domestic output but insignificant effects on the price level while foreign price shocks have significant negative effects on output and significant positive effects on the price level for approximately two years. The results indicate the importance of including foreign shock variables when modeling the Korean economy.     

Monetary policy under flexible exchange rates: When is expansion contractionary?

This paper studies whether the observed instability in the effects of monetary policy could be due to the way in which the behavior functions have been specified in an open economy context. Accordingly, special emphasis is on the specification of the behavior functions to correspond to their foundations in closedeconomy macrotheory. The demand for real money balances, in terms of the expenditure basket of goods, is specified as a function of income in terms of the same basket. Imports are specified as a function of expenditures, being functionally part of expenditures. The supply of labor is specified as a function of the expenditure price.It is shown that the exchange rate overshoots but output declines, to eventually rise above its original level in response to monetary expansion in the real wage model. In the money wage model, output and the exchange rate overshoot their steady-state levels if the expansion eventually leads to an increase in nominal wealth. If it leads to a decrease, both variables undershoot. However, if interest payments on foreign securities are not small relative to the trade balance, many of the effects are reversed. Thus the overshooting result is far from robust even in a standard model with an exogenous money supply.     

Trade prices and supply in the UK economy

Current account imbalances are a major source of instability in the world monetary and trading system. Measures to correct these imbalances have largely involved adjustments to exchange rates. In the international trade literature, when the current account is in deficit, the Marshall-Lerner condition is sufficient for a successful devaluation. However, this partial equilibrium condition — apart from being based on the assumption that supply elasticities are infinite — abstracts from how the domestic economy responds to the change in relative prices. In this paper we develop a model of price and output determination in an open economy with imperpectly competitive markets, and draw a distinction between goods which are exported and those which are supplied to the domestic market. This means that we have to determine jointly both export prices and the domestic price of house sales. We show that as long as there is no money illusion in the labour market a fall in the nominal exchange rate raises domestic and export prices proportionally and leaves trade volumes unaffected. However, shifts in domestic absorption relative to overseas demand — by changing relative prices — cause shifts in the relative supply of exports and domestically sold goods and affect the trade balance. Thus fiscal and monetary measures directed towards reducing domestic absorption are more likely to be successful in correcting current account imbalances than exchange rate depreciation.     

Expected Future Budget Deficits,the Real Exchange Rate and Current Account Dynamics in a Finite Horizon Model

This paper uses an optimizing open economy general-equilibrium model to investigate the macroeconomic effects of current and expected future budget deficits. It is shown that current and expected future budget deficits are positively correlated with the current account deficit, the capital stock and the real exchange rate, but negatively correlated with the domestic real interest rate and consumption, along the stable path approaching the steady state. The paper also demonstrates that the world real interest rate is positively correlated with consumption, foreign assets and the domestic real interest rate, but negatively correlated with the capital stock and the real exchange rate. Received April 11, 2001; revised version received October 25, 2001     

Optimal monetary policy for a small open economy

This paper focuses on the design of monetary policy rules for a small open economy. The model features optimizing behavior, general equilibrium and price stickiness. The real exchange rate is shown to affect the firm's real marginal cost, aggregate supply and aggregate demand. The welfare objective depends on the openness of the economy, and the optimal policy rule differs from that which obtains in a closed economy. The inflation versus output gap stabilization trade-off is caused by the real exchange rate. The implied optimal monetary policy regime is domestic inflation target coupled with controlled floating of the real exchange rate.     

Productivity Shocks and Monetary Policy in a Two-Country Model

In this paper, we examine the effects of foreign productivity shocks on monetary policy in a symmetric open economy. Our two-country model incorporates the New Keynesian features of price stickiness and monopolistic competition based on the cost channel of Ravenna and Walsh (2006). In particular, in response to asymmetric productivity shocks, firms in one country achieve a more efficient level of production than those in another economy. Because the terms of trade are directly affected by changes in both economies’ output levels, international trade creates a transmission channel for inflation dynamics in which a deflationary spiral in foreign producer prices reduces domestic output. When there is a decline in economic activity, the monetary authority should react to this adverse situation by lowering the key interest rate. The impulse response function from the model shows that a productivity shock can cause a real depreciation of the exchange rate when economies are closely integrated through international trade.     

关于汇率理论与汇率政策研究的思考

汇率的决定与外汇市场供求、经常账户平衡、央行货币政策、相关资产价格、经济基本面、国民收入及国际收支账户等有着直接的或间接的关系。完善人民币汇率形成机制,要从外汇市场拓展到本外币政策深层次协调,从涉外经济拓展到内外经济协调发展,同时在新的汇率形成机制下对国际货币体系和主要货币的变化趋势进行系统的监测预测和分析研究。     

Terms‐of‐Trade Shocks and Exchange Rate Regimes in a Small Open Economy*

We examine the impact of terms‐of‐trade shocks on key macroeconomic variables by numerically solving a dynamic stochastic general equilibrium model of a small open economy. The model considers nominal price rigidity under different exchange rate regimes. The numerical solutions obtained are consistent with the empirical regularities documented by Broda (2004), in which output responses to shocks are smoother in floats than in pegs; in moving from pegs to floats, the rise in nominal exchange rate volatility is coupled by the rise in real exchange rate volatility; and in both exchange rate regimes, net foreign assets is the most volatile variable.     

Oil Prices, Terms of Trade Shocks, and Macroeconomic Fluctuations in Saudi Arabia

The article investigates the sources of macroeconomic fluctuations in Saudi Arabia using structural vector autoregression methods and pays particular attention to oil prices and changes in terms of trade. Using a macroeconomic model tailored to the Saudi Arabian economy, the authors identify terms of trade, supply, balance of payments, aggregate demand, and monetary shocks. The results show that the Saudi Arabian price level, real exchange rate, and to a lesser extent output is vulnerable to terms of trade shocks. Moreover, Saudi Arabian terms of trade are driven by output, trade balance, and aggregate demand shocks. To stabilize output and the real exchange rate, Saudi Arabia ought to continue diversifying its production base and aim for a stable nominal oil price. (JEL E32 , Q43 , C22 )     

Currency devaluations,aggregate demand,and debt dynamics in economies with foreign currency liabilities

The article uses a post Kaleckian model to analyze how currency devaluations affect aggregate demand and capital accumulation in an economy with foreign currency liabilities in the short-run. In benchmark post Kaleckian open economy models, currency devaluations have two effects. First, they change international price competitiveness and thus affect net exports. Second, devaluations change income distribution and thereby affect consumption and investment demand. The overall effect on aggregate demand and investment is ambiguous and depends on parameter values. Existing models, however, disregard balance sheet effects that arise from foreign currency-denominated external debt. The article develops a novel post Kaleckian open economy model that introduces foreign currency-denominated external debt and balance sheet effects to examine the demand-effects of devaluations. Furthermore, the article models the dynamics of external and domestic corporate debt. It discusses how an economy may end up in a vicious cycle of foreign-currency indebtedness and derives the conditions under which indebtedness becomes stable or unstable. It shows that the existence of foreign currency-denominated debt means that contractionary devaluations are more likely, and that foreign interest rate hikes, and high illiquidity and risk premia compromise debt sustainability. Devaluations only stabilize debt ratios if they succeed in boosting domestic capital accumulation.     

Real exchange rates,asset prices and terms of trade: A theoretical analysis

This paper develops a continuous-time two-country dynamic equilibrium model, in which the real exchange rates, asset prices, and terms of trade are jointly determined in the presence of nontradable goods. The model determines the relation between the financial markets and real goods markets in the world economy and their responses to various shocks under the home bias assumption. A positive domestic supply shock induces a positive return on the domestic asset markets and a deterioration of terms of trade that improves the foreign output and boosts the foreign asset markets. Demand shocks act in the opposite way. This model also analyses the impact of change in the relative price of nontradable to tradable goods on the terms of trade and asset markets. A higher productivity growth in tradable goods than in nontradable goods leads to a higher relative price of nontradable to tradable goods, which appreciates the real exchange rate, deteriorates the terms of trade, and depresses the domestic and foreign asset markets. A lower relative price of nontradable goods depreciates the real exchange rate, improves the terms of trade, and lifts both the domestic and foreign asset markets.     

COMPARATIVE ANALYSIS OF EXCHANGE RATE APPRECIATION AND AGGREGATE ECONOMIC ACTIVITY: THEORY AND EVIDENCE FROM MIDDLE EASTERN COUNTRIES

The paper examines the effects of exchange rate depreciation on real output and price in a sample of 11 developing countries in the Middle East. The theoretical model decomposes movements in the exchange rate into anticipated and unanticipated components. Unanticipated currency fluctuations determine aggregate demand through exports, imports, and the demand for domestic currency, and determine aggregate supply through the cost of imported intermediate goods. The evidence indicates that the supply channel attributed to anticipated exchange rate appreciation results in limited effects on output growth and price inflation. Consistent with theory's predictions, unanticipated appreciation of the exchange rate appears more significant with varying effects on output growth and price inflation across developing countries.     

A 'pricing-to-market' model with unobserved variables: explaining New Zealand's import prices

A model of ‘pricing-to-market’ (PTM) behaviour in import prices is developed for a small open economy to allow for two measurement problems: (i) that neither the marginal production cost of imported goods nor their corresponding (foreign-currency) export price are observable by the econometrician; (ii) that PTM behaviour, if it exists, alters the relationship between foreign countries' export price indices for total exports and the true, unobservable price index. The analysis shows that variations in the measured markup on import prices depends on the degree to which domestic demand is synchronized with world demand, whether bilateral exchange rate movements are due to domestic or foreign factors, and on the degree to which PTM behaviour differs from such behaviour in other countries. Equations estimated for the price of New Zealand (NZ) imports from the US strongly supports the model, and finds that the degree of PTM by US exporters in response to price and exchange rate movements is substantially greater in NZ than the average for other countries. However, the degree of PTM in NZ in response to excess demand is similar to that of other countries.     

On the Transmission Mechanism of Monetary Constraints to the Real Side of the Economy

Contrary to the predictions of the theory underlying international finance, inflows of capital triggered by financial liberalisation have neither equalised real interest rates nor increased income growth in many emerging economies. We explain this puzzle by developing a model that combines the balance‐of‐payments constraint approach to economic growth with a less stringent version of the real interest rate parity hypothesis. The model’s foundations are based on robust empirical findings or well‐established macroeconomic models. We show that a perverse combination of income elasticities of demand for imports and exports generates slow income growth and high real interest rates. As domestic income grows and imports rise faster than exports, the real exchange rate is expected to depreciate in order to clear the balance of payments (or the foreign exchange rate market). An incipient capital outflow arises and interest rates increase. Faster adjustment in capital rather than in the goods market therefore generates a higher real interest rate differential between the domestic small open‐economy and the rest of the world. The long run analysis shows that a constant degree of risk aversion implies a positive equilibrium real interest rate differential that affects economic growth. A permanent increase in default risk driven by persistent current account imbalances thus impacts on long run growth. The model’s results are illustrated with evidence from the three major Latin America economies: Argentina, Brazil and Mexico.     

The Choice of an Optimal Exchange Rate System for a Small Country Under the three Good and three Country Model

The purpose of this paper is to analyze the problem of the choice of an optimal exchange rate system for a small country in terms of insulation from foreign real and monetary disturbances and in terms of minimizing the output variance around desired output. We employ a simple open macroeconomic model which can represent a small country's economy where the production of domestic output is dependent upon the intermediate goods from the rest of the world and where there are a variety of controls over foreign exchange and capital flows by a monetary authority. [420]     

Macroeconomic adjustment with managed exchange rates and capital controls: Some lessons from China

This paper examines the performance of capital controls and exchange-rate management when the economy finds itself in dark corners. These are times when the real sector experiences a sequence of prolonged negative shocks from world demand, while the central bank faces low world interest rates on its foreign-exchange reserve holdings. We examine two regimes, one of a fixed exchange rate with strong capital controls and another with a more open capital account with a managed exchange rate. We show how this model replicates recent experiences of China as it moved from a relatively fixed exchange rate regime with strong capital controls to a more flexible exchange rate regime with a more open capital account. Our results show that capital-account liberalization should be accompanied by domestic price liberalization to avoid large losses in foreign exchange reserve and jumps in unemployment during dark corners in the more open regime.     

Exchange market pressure and primary commodity – exporting emerging markets

This paper studies short-term sensitivity between exchange market pressure and various domestic and external factors in primary commodity-exporting emerging markets. The paper focuses on the top country-commodity groups in sugar, cereal, fuels, ores and coffee during the pre-peak and post-peak commodity price periods across floating and pegged exchange rate regimes, using the price of crude oil as a general benchmark. Employing a panel model and panel VAR analysis, the paper finds the heterogeneity of response patterns unique to country-commodity groups and exchange rate regimes. According to the results, in flexible regimes, volatility occurs via the foreign exchange market, interest rates, and domestic credit cycles, feeding into the social costs for structurally weaker economies. Hard exchange-rate pegs often result in a drain on international reserves as the terms of trade deteriorate following post-price peaks, leading to unpopular depreciation. These results accentuate concerns over uneven international trade patterns, an open economy’s short-term foreign exchange policy, and speculative capital flows. Such sensitivity has broad implications for macroeconomic balance and the sustainability of implied exchange rate targets in the presence of a foreign exchange constraint across emerging markets.     

Insulation properties of separating exchange markets

Insulation properties play an important role for countries in favour of separating rates for separating transactions. Such properties insulate the open economy from monetary and real shocks, of domestic and foreign origins. Through theoretical and numerical analyses, we find that in a unified flexible exchange rate system, portfolio holders' expectations drive the price adjustment, leading to expectations of exchange rate changes. In separating exchange markets, the financial rate reflects the instability of portfolio holders' expectations and capital flows; however, the real exchange rate and hence the macroeconomy is stable. Uncertainty of shocks ceases to affect the real sector of the economy.     

Analysis of shock transmissions to a small open emerging economy using a SVARMA model

Using a parsimonious structural vector autoregressive moving average (SVARMA) model, we analyse the transmission of foreign and domestic shocks to a small open emerging economy under different policy regimes. Narrower confidence bands around the SVARMA responses compared to the SVAR responses, advocate the suitability of this framework for analysing the propagation of economic shocks over time. Malaysia is an interesting small open economy that has experienced an ongoing process of economic transition and development. The Malaysian government imposed exchange rate and capital control measures following the 1997 Asian financial crisis. Historical decomposition and variance decomposition allow contrast of shocks propagating under different policy regimes. Malaysia is highly exposed to foreign shocks, particularly under the managed float exchange rate system. During the pegged exchange rate period, Malaysian monetary policymakers experienced some breathing space to focus on maintaining price and output stability. In the post-pegged period, Malaysia's exposure to foreign shocks increased and in recent times are largely driven by world commodity price and global activity shocks.     

Does devaluation improve trade balance in small island economies? The case of Fiji

A number of countries, mostly small and island economies manage fixed exchange and often devalue it as a stabilisation strategy. The current paper investigates the effectiveness of devaluation in improving trade balance with reference to Fiji. A small island economy has limited exportable and hence highly depends on imports for both consumption and production purposes. A devaluation, therefore, inflates domestic price and appreciates the real exchange immediately by raising importable consumption and discouraging imports used in domestic production. The paper applies various econometric models for empirical investigation of its impact and transmission mechanism. Strong long-run relationship found between real exchange rate and trade balance explains that appreciation of currency has been responsible for the rising trade deficit in the economy. Moreover, the devaluation did not demonstrate J-curve phenomenon. The effect of devaluation strongly contributed to the domestic inflation has been while quite weak on stimulating aggregate demand.