Labor market distortions and China's WTO accession package:: an applied general equilibrium assessment

The economic implications of China's accession to the World Trade Organization have been analyzed using applied general equilibrium techniques. We explore the consequences of trade reform in the presence of labor market distortions. A formal model of imperfect labor mobility is incorporated into a large-scale, stochastic applied general equilibrium framework with which the consequences of China's trade reform for net welfare are considered. The simulations suggest that distortions in China's labor market, including imperfect labor mobility, rural-urban migration, dual urban markets and surplus rural labor, have significant effects on trade liberalization outcomes and in some cases produce unexpected second-best results. Journal of Comparative Economics 31 (4) (2003) 774–794.     

A New Approach to Currency Depreciation

Currency depreciation has been studied conventionally in terms of three hypotheses—the elasticities approach, the monetary approach and the absorption approach. In this paper we offer another hypothesis called the price approach, wherein the balance of payment disequilibrium results from an inappropriate price level. Specifically, a country has a trade surplus if the equilibrium price level is below that compatible with balanced trade; by contrast, it has a trade deficit if the price level is above that compatible with balanced trade. We illustrate the price approach with the experience of currency devaluations that have occurred in emerging markets since 1997.     

Cheating in markets: A laboratory experiment

We develop a two-market model under three conditions: autarky, frictionless free trade, and free trade with cheating. With cheating, buyers can underpay by π% in cross-market trades and sellers can deliver π% of full value. We solve for competitive equilibrium with cheating and obtain novel testable predictions on price, volume and surplus. We test these in a laboratory experiment using parameters intended to challenge the theory. The results are generally consistent with competitive equilibrium. We find evidence of price unification, market segmentation, a cross-market volume of trade lower under cheating than in frictionless free trade, but a higher overall volume.     

DECENTRALIZED TRADE MITIGATES THE LEMONS PROBLEM*

In markets with adverse selection, only low‐quality units trade in the competitive equilibrium when the average quality of the good held by sellers is low. We show that under decentralized trade, however, both high‐ and low‐quality units trade, although with delay. Moreover, when frictions are small, the surplus realized is greater than the (static) competitive surplus. Thus, decentralized trade mitigates the lemons problem. Remarkably, payoffs are competitive as frictions vanish, even though both high‐ and low‐quality units continue to trade, and there is trade at several prices.     

Optimal Controls for a Large Insurance Under a CEV Model: Based on the Legendre Transform-Dual Method

The purpose of this paper is to consider the optimal proportional reinsurance and investment strategies for an insurance company. The insurer’s surplus process is approximated by a Brownian motion with drift. The insurance company can purchase proportional reinsurance and invest the surplus in a financial market which includes one risk-free asset and one risky asset whose price is modeled by a CEV model. The primary problem is changed to the dual problem by implying Legendre transform. When the objective of the insurance company is to maximize the expected logarithmic utility from terminal wealth, the closed-form expressions for the optimal reinsurance-investment policy which is different to the Merton case to the primal optimal problem are obtained and numerical simulations are provided to demonstrate our results. Moreover, we find an interesting result that risk exposure is non-monotonic in the cost of reinsurance.

     

对偶性一般均衡分析与国际贸易理论的深化-基于迪克西特与诺曼著《国际贸易理论》的分析

该文以迪克西特与诺曼合著的《国际贸易理论》一书为参照,分析了现代贸易理论所面临的三种挑战,探讨了对偶性一般均衡分析方法在应对这些实践挑战与深化国际贸易理论的比较优势,并且揭示了对偶性一般均衡分析方法由一种特殊的分析技术成长为国际贸易研究中的主流分析范式的过程与原因.     

Inside and outside fiat money, gains to trade, and IS-LM

Summary. We build a one-period general equilibrium model with money. Equilibrium exists, and fiat money has positive value, as long as the ratio of outside money to inside money is less than the gains to trade available at autarky. We show that the nominal effects of government fiscal and monetary policy can be completely described by a diagram identical in form to the IS-LM curves introduced by Hicks to describe Keynes' general theory. IS-LM analysis is thus not incompatible with full market clearing, multiple commodities, and heterogeneous households. We show that as the government deficit approaches a finite threshold, hyperinflation sets in (prices converge to infinity and real trade collapses). At the other extreme, if the government surplus is too large, the economy enters a liquidity trap in which nominal GNP sinks and monetary policy is ineffectual. Received: January 2, 2002; revised version: April 8, 2002 Correspondence to: P. Dubey     

我国贸易顺差的根源及外需的可替代性——基于贸易品—非贸易品的分析框架

本文在开放宏观经济的平衡关系中引入产品的可贸易性差异,探讨我国贸易顺差的根源以及外需的可替代性。研究结果表明,(1)我国国内总供给结构偏向于贸易品,国内总需求结构偏向于非贸易品,两者之间不断扩大的差距是贸易顺差不断增长的根本原因;(2)非贸易品供给不足所导致的"强制储蓄"现象,制约了我国居民消费需求的增长,使其无法有效替代外需;(3)给定国内供给和需求的结构性特征,外需增加是国内投资增加的必要条件,投资需求无法替代外需;(4)为了实现总需求构成的重新平衡,特别是提升国内消费需求在总需求中的比重,不能简单地依赖总需求管理政策或收入分配政策,必须配合以促进供给结构调整的政策措施。     

Rules of origin and gains from trade

Free trade areas (FTAs) involve unharmonized tariffs and rules of origin that have prevented proving the formal general equilibrium existence of a welfare-enhancing FTA. This paper identifies the most restrictive limit that rules of origin can enforce and still continue to guarantee gains from trade for FTA formation. We note that many commonly used rules of origin exceed this condition in practice. We apply the identified welfare-supporting rules of origin and prove the existence of a FTA general equilibrium involving only within-FTA transfers that is at least as satisfactory for every consumer as an arbitrary original world trade allocation. The analysis also helps to explain why hub-and-spoke extensions of FTAs cannot be expected to guarantee gains from trade for all participants in general.     

UNITED STATES-CHINA TRADE AT THE COMMODITY LEVEL AND THE YUAN-DOLLAR EXCHANGE RATE

In 1978 when China began her economic reforms of moving toward a free market economy and trade liberalization, the trade balance between China and the United States was in favor of the United States in the magnitude of 600 million dollars. Over the 1978–2002 period, however, it has changed in favor of China such that in 2002 China had a surplus of 120 billion dollars against the United States. Over the same period, the Chinese yuan has depreciated almost fourfold. Is real depreciation of the yuan against the dollar a factor in the trade between the two countries? In this article, we employ data at the industry level (88 two‐ and three‐digit industries) and recent advances in error‐correction modeling to show that indeed the real yuan‐dollar rate has played a significant role. This contradicts most previous research that used trade data at the aggregate level. (JEL F31, F32, F14)     

Accounting for the China–US Trade Imbalance: An Ownership‐Based Approach

This paper focuses on measuring the trade imbalance between China and the United States (US) within the framework of the ownership‐based approach. It extends the baseline model developed, respectively, by NAS, Julius, and BEA into a three‐country framework, consisting of the domestic economy, the foreign economy, and the rest of the world. The results of the study show that the non‐US foreign direct investment in China is mostly responsible for China's trade surplus with the US. As a result, China's ownership‐based trade surplus is surprisingly small relative to the conventional measure.     

A spatial network approach to urban configurations

Abstract We propose a spatial network approach to studying urban configurations by modelling explicitly knowledge transmission, aggregation and spillovers via links formed, as well as by allowing the population and the locality role (‘core’ versus ‘periphery’) in each location to be endogenously determined in equilibrium. We establish conditions for the commonly assumed monocentric configuration to arise as the unique and efficient equilibrium outcome. We also illustrate under what circumstances a spatial equilibrium may feature multicentric, urban‐rural, or multiple (disconnected) urban areas and under what conditions each configuration is socially efficient. We further characterize the spatial equilibrium by performing various comparative statics.     

The impacts of Renminbi appreciation on trade flows and reserve accumulation in a monetary trade model

Given the rapidly growing reserves in Asia (China, Japan, Korea, and Taiwan) and the pressures from trading partners to revalue, there is a need to examine commercial policy in more than a pure barter model. Here we evaluate the joint impacts of exchange rate appreciation on trade flows and country surpluses using a general equilibrium trade model with a simple monetary structure in which the trade surplus is endogenously determined in the exchange rate setting country and the exchange rate is exogenous. We illustrate its application to the Chinese case using calibration to 2005 data. Our results, while elasticity dependent, suggest that the impacts of Renminbi (RMB) revaluation on the surplus are proportionally larger than on trade flows, and that changes in trade flows can be substantial. Different treatments of China's processing trade have small impact on changes in China's trade flow under RMB appreciation, but significant impacts on the change in the surplus. Results are elasticity dependent; larger substitution elasticities in preferences yield larger effects on trade flows and the surplus.     

中国农业剩余劳动力转移问题的一个非均衡分析框架

在二元经济社会中,农业剩余劳动力的内涵是产业间收入差距引起的相对剩余,其存在的根本原因是产业结构的变动和升级。对我国农业剩余劳动力转移问题的研究必须以我国的经济发展阶段为背景,跳出劳动力市场均衡的分析框架,以技术进步和产业结构转换为主线,从剩余劳动力的供给和需求两个方面来探求其可能的转移途径。     

Bargaining under a deadline: evidence from the reverse ultimatum game

We study a “reverse” ultimatum game, in which proposers have multiple chances to offer responders a division of some fixed pie. The game ends if the responder accepts an offer, or if, following a rejection, the proposer decides not to make a better offer. The unique subgame perfect equilibrium gives the proposer the minimum possible payoff. Nevertheless, the experimental results are not too different from those of the standard ultimatum game, although proposers generally receive slightly less than half of the surplus.We use the reverse ultimatum game to study deadlines experimentally. With a deadline, the subgame perfect equilibrium prediction is that the proposer gets the entire surplus.Deadlines are used strategically to influence the outcome, and agreements are reached near the deadline. Strategic considerations are evident in the differences in observed behavior between the deadline and no deadline conditions, even though agreements are substantially less extreme than predicted by perfect equilibrium.     

Recursive methods for incentive problems

Many dynamic incentive problems have a primal recursive formulation in which utility promises serve as state variables. We associate dual recursive formulations with these problems. We make transparent the connections between recursive primal and dual approaches, relate value iteration under each and give conditions for such value iteration to be convergent to the true value function.     

NONLINEAR AUTOREGRESSIVE DISTRIBUTED LAG APPROACH AND BILATERAL J‐CURVE: INDIA VERSUS HER TRADING PARTNERS

The J‐curve studies related to India have mostly either used aggregate trade flows of India with the rest of the world or between India and its trading partners. They have all assumed exchange rate changes have symmetric effects on Indian trade balance. In this article, we use partial sum concept combined with the nonlinear autoregressive distributed lag approach of Shin et al. to show that indeed in some instances, there are evidences of asymmetry effects of currency depreciation. This new nonlinear approach provides more support for the J‐curve than the previous linear approaches. (JEL F31)     

Trade imbalance and the endogenous optimal tariff

Endogenous tariff literatures reveal empirically that trade imbalance is negatively related with import tariff, this article gives a theoretical evidence and explanation to support this finding with the methodology of multi-country numerical general equilibrium modelling and simulation. We explore how optimal tariff changes after trade imbalance is introduced, and find that optimal tariffs decrease substantially, either for surplus or deficit countries, when imbalance is considered. Specifically, when the imbalance is modelled in endogenous monetary and inside-money structures, the optimal tariffs decrease by 26% globally on average. Our results suggest that the deepening trade imbalance is beneficial to the global trade liberalization due to its driving tariffs down.     

Effective demand and the terms of trade in a dual economy: a Kaldorian perspective

Along the line suggested by Nicholas Kaldor, the paper incorporatesinto the analysis of a dual economy effective demand as a problemof generation of agricultural surplus and its realisation intopurchasing power for industrial goods. Through this approach,it is shown how one obtains empirical predictions about unevensectoral growth rates, as well as an effect of the movementin the terms of trade on long-term industrial growth which iscontrary to that suggested by Lewis. The paper also specifiesthe process of dynamic adjustment of industrial growth in aself-reinforcing circular flow under conditions of sufficientlyhigh agricultural growth, extending the effective demand argumentin a dual economy.     

Growth,economic structure,and residential distribution of a small city

This article presents a growth model of a small open city with economic structure and geography. The city which is located along a line segment has three, industrial, services and housing, sectors. The spatial growth model of a small city synthesizes the main ideas in some important models in the neoclassical growth theory, urban economics, and the literature of economic growth of small open economies. We show that the dynamic system has a unique equilibrium. We also simulate the motion of the urban economy over time and space. The unique feature of our approach is to treat production activities, economic structure, residential distribution, capital accumulation, and consumption on the basis of microeconomic mechanism as an integrated whole. Our simulation provides some important insights into the processes of the urban economic growth. For instance, under certain conditions, when the industrial sector’s productivity is increased, the wage rate, price of services, capital intensities of the services and industrial sectors, and per-worker output levels of the two sectors are increased. The total labor supply, the capital stocks employed by the three sectors and the labor forces by the service and industrial sectors are all increased. The shares of the three sectors are not affected by the technological change in the long term, even though the shares are initially affected. The per capita consumption level of the industrial goods rises and the consumption level of services falls. The land and housing rents are increased and the consumption of housing per household falls. Moreover, the current account balance tends to be more in surplus and the growth rate is increased.