Are asset price guarantees useful for preventing Sudden Stops?: A quantitative investigation of the globalization hazard-moral hazard tradeoff

An implication of the globalization hazard hypothesis is that ‘Sudden Stops’ caused by global financial frictions could be prevented by offering foreign investors price guarantees on emerging markets assets. These guarantees create a tradeoff, however, because they weaken globalization hazard while creating international moral hazard. We study this tradeoff using a quantitative, equilibrium asset-pricing model. Without guarantees, margin calls and trading costs cause Sudden Stops driven by a Fisherian deflation. Price guarantees prevent this deflation by propping up foreign demand for assets. The effectiveness of price guarantees, their distortions on asset markets, and their welfare implications depend critically on whether the guarantees are contingent on debt levels and on the price elasticity of foreign demand for domestic assets.     

Quantitative implications of a debt-deflation theory of Sudden Stops and asset prices

This paper shows that the quantitative predictions of an equilibrium asset-pricing model with financial frictions are consistent with key features of the Sudden Stop phenomenon. Foreign traders incur costs in trading assets with domestic agents, and a collateral constraint limits external debt to a fraction of the market value of domestic equity holdings. When this constraint does not bind, standard productivity shocks cause typical real-business-cycle effects. When it binds, the same shocks cause strikingly different effects depending on the leverage ratio and asset market liquidity. With high leverage and a liquid market, the shocks force “fire sales” of assets and Fisher's debt-deflation mechanism amplifies the responses of asset prices, consumption and the current account. Precautionary saving makes these Sudden Stops infrequent in the long run.     

State dependent pricing, invoicing currency, and exchange rate pass-through

We analyze exchange rate pass-through and volatility of import prices in a dynamic framework where firms are subject to menu costs and decide on price adjustments in response to exchange rate innovations. The exchange rate pass-through and import price volatility then depend on the invoicing currency in combination with functional forms of cost and demand functions. In particular, there is lower pass-through, less frequent price adjustments, and lower price volatility when prices are set in the importer's currency than when prices are set in the exporter's currency.     

Harvest contract price volatility for cotton

Changes in agricultural and international trade policy have increased attention to issues of price volatility and risk management. Previous work in the area of price volatility has typically focused on grains, with little work dealing with cotton. The objective of this analysis was to examine the determinants of price volatility for cotton, focusing on the growing season volatility of the harvest contract. Different econometric techniques, including ARCH/GARCH, were employed to estimate the effects of a set of variables on price volatility. The potential for a nonlinear relationship between price and volatility was examined. Findings suggest a significant seasonal pattern to volatility as well as a nonlinear relationship between price and volatility. The results also suggest that cotton price volatility has not significantly changed with respect to changes in agricultural policy. © 1999 John Wiley & Sons, Inc. Jrl Fut Mark 19: 717–733, 1999     

Oil shocks and external adjustment

We examine the effects of endogenously determined oil price fluctuations in a two-country DSGE model. Under incomplete financial markets, an oil market-specific shock that boosts the oil price results in a wealth transfer toward oil exporters, depresses the oil importer's consumption, and causes the oil importer's real exchange rate to depreciate. Although the oil importer experiences a deterioration in the oil component of its trade balance, an improvement in the nonoil balance substantially dampens the effects on the overall trade balance.     

Systemic risk in global volatility spillover networks: Evidence from option-implied volatility indices

With option-implied volatility indices, we identify networks of global volatility spillovers and examine time-varying systemic risk across global financial markets. The U.S. stock market is the center of the network and plays a dominant role in the spread of volatility spillover to other markets. The global systemic risks have intensified since the Federal Reserve exited from quantitative easing, hiked interest rate, and shrank its balance sheet. We further show that the U.S. monetary tightening is an important catalyst for the intensifying global systemic risk. Our findings highlight the pernicious effects of monetary tightening after an era of cheap money.     

Exports versus multinational production under nominal uncertainty

This paper examines how nominal uncertainty affects the choice that firms face to serve a foreign market through exports or to produce abroad as a multinational. I develop a two-country, stochastic general equilibrium model in which firms make production and pricing decisions in advance, and I consider its implications for the relative attractiveness of exporting and multinational production. I find that when multinational sales are priced in the local currency while exports are priced in the producer currency, destination volatility benefits exporters: during a foreign nominal contraction, the foreign exchange rate appreciates, causing exports to be relatively cheaper. Exporters gain non-linearly through demand, making profit convex in prices. As foreign volatility rises, the model implies that the home country should serve the foreign country relatively more through exports. I take this implication to bilateral U.S. data, using inflation volatility as a proxy for nominal volatility. Using sectoral data on sales by majority-owned foreign affiliates matched with U.S. exports, I find that higher inflation volatility is associated with a significantly lower ratio of multinational sales to total foreign sales.     

Exchange rate determination: The role of factor price rigidities and nontradeables

This paper introduces factor (labor) markets into the intertemporal monetary model of Obstfeld and Rogoff and combines this richer market structure with a new utility-independent representation of nontradeables. This allows us to explore the international monetary transmission mechanism for factor price (wage) rigidities under different degrees of macroeconomic openness. Factor price rigidities imply similar properties for the international transmission mechanism as domestic producer price rigidities. Nontradeables give raise to interesting new effects under asymmetric monetary shocks: They create short-run PPP deviations, increase exchange rate volatility relative to price level volatility and reduce (positive) consumption and (negative) output comovements.     

The effect of trade liberalization on child labor

The question of how trade liberalization affects the employment of children in developing economies is at the core of the debate on globalization. Trade theory predicts that an increase in the price of an exported good could either increase or decrease child labor depending on the magnitudes of the substitution and income effects. In this paper, we study the relationship between changes in the relative price of an exported commodity and child labor using household-level data from within a poor country. In particular, we relate child labor to regional and intertemporal variation in the real price of rice surrounding national and international rice market integration in Vietnam. We find that higher rice prices are associated with declines in child labor. Income effects play an important role in this relationship. Rice price increases are associated with the largest declines in child labor in households that are large net producers of rice. These findings show that greater market integration can be associated with less child labor. Moreover, our results suggest that the use of punitive trade sanctions on exports from developing countries to eradicate child labor is unlikely to yield the desired outcome.     

Financial dollarization

We present a portfolio model of financial intermediation in which currency choice is determined by hedging decisions on both sides of a bank’s balance sheet. We show that minimum variance portfolio (MVP) allocations provide a natural benchmark to estimate the scope for dollarization of assets and liabilities (financial dollarization) as a function of macroeconomic uncertainty. Within this benchmark, we find that financial dollarization displays high persistence whenever the expected volatility of the inflation rate remains high in relation to that of the real exchange rate, even after price stabilization has been achieved. The empirical evidence confirms that MVP dollarization approximates financial dollarization closely for a broad sample of countries.     

Equity Options and Underlying Stocks' Behavior: Further Evidence from Japan*

In an incomplete market, introduction of options could affect the underlying stocks' market behavior. We further examine the various impacts of the advent of equity options, using a recent sample of equity options in Japan. We find that option listings in Japan lead to significant increases in price and volatility, relative to a control sample matched by probability of listing, despite that equity options were launched after the index options in Japan. We discuss the apparent differences in the price and volatility effects across the markets, and conclude that differences in regulatory environments might be responsible.     

中国粮食价格长期波动特征研究:基于成分GARCH模型

通过应用非对称成分GARCH模型研究中国粮食价格长期波动率的集群性与非对称性特征,结果表明:籼稻、大豆、小麦和玉米价格变化率具有显著的异方差效应,长期波动率随时间变化而变化,但总体呈现逐步下降趋势,除籼稻外的其他三种粮食价格短暂波动具有非对称性,即价格上涨信息引发的波动比价格下跌信息引发的波动大。     

Openness and optimal monetary policy

We show that the composition of international trade has important implications for the optimal volatility of the exchange rate, above and beyond the size of trade flows. Using an analytically tractable small open economy model, we characterize the impact of the trade composition on the policy trade-off and on the role played by the exchange rate in correcting for price misalignments. Contrary to models where openness can be summarized by the degree of home bias, we find that openness can be a poor proxy of the welfare impact of alternative monetary policies. Using input–output data for 25 countries we document substantial differences in the import and non-tradable content of final demand components, and in the role played by imported inputs in domestic production. The estimates are used in a richer small-open-economy DSGE model to quantify the loss from an exchange rate peg relative to the Ramsey policy conditional on the composition of imports. We find that the main determinant of the losses is the share of non-traded goods in final demand.     

Market Reforms and Commodity Price Volatility: The Case of East African Coffee Market

The goal of this paper is to examine the impact of commodity market reforms on producer price volatility using evidence from the East African coffee market. The results, based on time‐varying volatility models and key summary statistics, show that coffee market reforms in the East African Community (EAC) are associated with changes in producer price volatility and volatility persistence at both country and regional levels. However, reforms were not the only cause of changes in price volatility. The study further shows that reforms had different effects on prices volatilities of Arabica and Robusta varieties of coffee grown in individual EAC countries. These findings have wider implication for commodity market reforms and producer price stabilisation policies in the EAC and coffee producing countries in sub‐Sahara Africa.     

Accounting for persistence and volatility of good-level real exchange rates: The role of sticky information

Volatile and persistent real exchange rates are observed not only in aggregate series but also in micro-price data at the retail level. Kehoe and Midrigan (2007) recently showed that, under a standard assumption on nominal price stickiness, empirical frequencies of micro price adjustment cannot replicate the time series properties of the Law of One Price (LOP) deviations. We extend their sticky price model by combining good-specific price adjustment with information stickiness in the sense of Mankiw and Reis (2002). Our framework allows for multiple cities within a country. Using a panel of U.S.-Canadian city pairs, we estimate a dynamic price adjustment process for 165 individual goods. Under a reasonable assumption on the money growth process, we show that the model matches the persistence of the LOP deviation for the median good and accounts for the majority of its volatility when information updates occur every 12 months.     

Exchange rate volatility and economic performance in Peru: a firm level analysis

This paper analyzes the impact of the exchange rate volatility on the performance of the Peruvian economy using financial information from 163 non-financial listed firms. We find evidence that, for firms holding dollar-denominated debt, investment decisions are negatively affected by real exchange rate depreciation. The reasons behind this result are: (i) the high degree of liability dollarization and currency mismatch that create the conditions for a balance sheet effect and a financial stress in the aftermath of a currency depreciation; (ii) the strong bank-lending channel that follows and reinforces the balance sheet effect; (iii) the domestic demand shrinkage that affects severely firms’ sales; and (iv) the relatively small and poorly diversified export sector.     

Trade liberalization and the allocation of labor between households and markets in a poor country

We consider the relationship between relative price changes and the allocation of labor between households and the formal wage labor market in the context of Vietnam's liberalization of its rice trade in the 1990s. Many individuals in poor economies work within their own household rather than in formal labor markets. We find that larger rice price increases in a community are associated with declines in hours adults devote to work within the household and increases in time spent in the wage labor market. We also observe increased specialization in household economic activities accompanying these shifts in hours towards wage work. Our results are consistent with the idea that a growth in the extent of the market shifts production and labor from households to markets during development, thereby inducing gains from specialization. Thus, the reallocation of labor between households and markets in response to a trade liberalization might be an important component in understanding the link between trade and growth in very poor economies, currently the focus of the Doha WTO negotiation round.     

Return and price volatility of bonds with different credit risk

This article analyzes the relative price and monthly holding period return volatility of bonds with differing credit risk. The research proceeds by decomposing the causes of price volatility into that due to duration and yield volatility. Lower duration, due to higher coupon rate, and relatively stable yields, due to the behavior of credit risk and risk aversion over the business cycle, may well make lower quality issues such as A and Baa industrials exhibit less volatility than high-quality issues such as Aaa industrials and United States Treasury issues.     

Canonical valuation of options in the presence of stochastic volatility

Proposed by M. Stutzer (1996), canonical valuation is a new method for valuing derivative securities under the risk‐neutral framework. It is nonparametric, simple to apply, and, unlike many alternative approaches, does not require any option data. Although canonical valuation has great potential, its applicability in realistic scenarios has not yet been widely tested. This article documents the ability of canonical valuation to price derivatives in a number of settings. In a constant‐volatility world, canonical estimates of option prices struggle to match a Black‐Scholes estimate based on historical volatility. However, in a more realistic stochastic‐volatility setting, canonical valuation outperforms the Black‐Scholes model. As the volatility generating process becomes further removed from the constant‐volatility world, the relative performance edge of canonical valuation is more evident. In general, the results are encouraging that canonical valuation is a useful technique for valuing derivatives. © 2005 Wiley Periodicals, Inc. Jrl Fut Mark 25:1–19, 2005     

Trade liberalization and the evolution of skill earnings differentials in Brazil

Skilled labor earnings differentials decreased during the trade liberalization implemented in Brazil from 1988 to 1995. This paper investigates the role of trade liberalization in explaining these relative earnings movements. We perform several independent empirical exercises that check the traditional trade transmission mechanism, using disaggregated data on tariffs, prices, earnings, employment and skill intensity. We find that: i) employment shifted from skilled to unskilled intensive sectors, and each sector increased its relative share of skilled labor; ii) relative prices fell in skill-intensive sectors; iii) tariff changes across sectors were not related to skill intensities, but the pass-through from tariffs to prices was larger in skill-intensive sectors; iv) the decline in skilled earnings differentials mandated by the price variation predicted by trade was even larger than the observed one. The results are compatible with trade liberalization accounting for the observed relative earnings changes in Brazil. They also highlight the importance of considering the effects of differentiated pass-through from tariffs to prices.