Price convergence across regions in India

The paper attempts to examine whether there is price convergence across various regions in India. Using panel unit root tests that are robust to cross-sectional dependence, it is found that relative price levels among various regions in India are mean-reverting. Further, we decompose each series into a set of common factors and idiosyncratic components. The decomposition enables us to test stationarity and estimate half-lives of the common factors and the idiosyncratic components separately. Both these components are found to be stationary. Idiosyncratic price shocks, however, are found to be more persistent as compared to the common factor. Results also indicate that transportation cost proxied by distance can explain a part of the variation in prices between two locations in India. The authors would like to thank Dibyendu Bhaumik for arranging the data for this study. Views expresed in the paper are personal and do not reflect the views of the organizations.     

国内外铜期货市场的价格联系

The purpose of this paper is to investigate the time varying relationships between the Chinese copper futures market and its London counterparts. Rolling correlation and rolling Granger causality test show that with the development of the Shanghai copper futures markets, it has stronger connections with its London counterpart and it plays more and more important role in the price discovery process. There is a long run relationship between the Shanghai futures exchanges (SHFE) and London Metals exchanges (LME) copper futures prices. The influence of LME on SHFE is greater than that of SHFE on LME. The research will shed light on the openness of the Chinese copper commodity markets and on the nature of cross-market information transmission.      

Business cycle convergence and trade: Brazil and China in a changing world

The recent economic interaction between Latin America and Asia, particularly between Brazil and China, has attracted the attention of the academic world that seeks to understand the effects of this approach in terms of business cycle convergence, economic structure and development trajectory. This paper contributes to this debate, presenting new evidence about the type and quality of this relationship. Our results reveal that Brazil and China present different patterns of relationship between trade and productive specialization: while Brazil has an intra-industry trade pattern, China has an inter-industry trade pattern. We explore some normative implications and future research possibilities.     

不确定性世界的企业领导

我们存在于一个动态变迁的世界之中,这决定了企业在决策时面临着大量的不确定性,企业要在这样的情况下获得持续生存,就必须认清环境演变的意义,建立一套具有适应性效率的制度结构,将不确定性融入到决策的制定过程中去。     

Price convergence in US cities: a cointegration approach with two structural breaks

This article investigates how the price indices of major cities of the US respond to the shock from a city and from monetary policy. We find that the crisis of Bretton Woods system in 1968 and the oil crisis in 1974 should be incorporated as structural breaks in monetary policy variables and price indices. Using cointegration technique with structural break in our aggregated data, we find that the average half-life is 1.75 years, which is closer to what some of others found in disaggregated data, and that the interest rate is an effective tool for controlling cities’ price in short run.     

Industrial policy in an imperfect world

We study industrial policy and its effectiveness in a model with both market and government failures. We introduce a public agency responsible for industrial policy into the model of Hausmann and Rodrik [Hausmann, R., Rodrik, D., 2003. Development as Self-Discovery. Journal of Development Economics 72, 603–633], and we assume that this agency has limited information and political motives. In an extension, we further allow entrepreneurs to engage in rent seeking activities. We find that industrial policies are ineffective if the public agency is poorly informed, but not necessarily so if it is highly politically motivated. Given a politically motivated public agency, industrial policies are effective if and only if the institutional setting ensures that such policies are modest, e.g. by restricting the agency's budget. Moreover, our model helps us to understand why the same industrial policies that have failed elsewhere have been relatively successful in South Korea and Taiwan.     

Measuring productivity in an imperfect world

Most measures of multifactor productivity (MFP) assume constant returns to scale and perfect competition. Using a general aggregate production function together with duality theory and allowing for the possibilities of disequilibrium, markups and economies of scale, the study derives a more generalized MFP measure. The model was used to assess the economic performance in US manufacturing for the 1949 to 1988 period. The results suggest that scale and markups have substantial power in explaining MFP growth for all periods and that half of the measured MFP growth (as measured within the conventional framework) comes from biases due to scale economies, market power, and interaction effects.     

Price controls in an open economy

Wage and price controls have been increasingly called for as Western economies have experienced periods of stagflation. Part of their attractiveness has been due to the belief that they are an appropriate instrument to deal with a country's unsatisfactory balance-of-payments position. This paper evaluates the appropriateness of an incomes policy in an open economy. An optimally structured incomes policy, derived for a simple inflation model, is examined under alternative exchange rate regimes. The model, in the tradition of models by Gordon, Hicks, and Okun, is characterized by two output markets-one a flexible price market and one characterized by markup pricing-and by a single labor (input) market. This model is then used as the constraint set in a dynamic optimization problem. Both analytical and simulation results are presented. The results suggest that a direct price control program is not appropriate in an open economy.     

Price dynamics in an exchange economy

The pure exchange model is the foundation of the neoclassical theory of value, yet equilibrium predictions and price adjustment dynamics for this model remained untested prior to the experiment reported in this paper. With the exchange economy replicated several times, prices and allocations in most experiment sessions adjust toward the competitive equilibrium in continuous double auction trading, though adjustment is much slower than in previous commodity flow (or perishable good) double auction market experiments. Price adjustment is evaluated by comparing its extent within each market replication (or trading period) to its extent across trading periods. More price adjustment occurs within trading periods than across trading periods, so price adjustment data are evaluated with the disequilibrium Hahn process model (Hahn and Negishi in Econometrica 30:463–469, 1962) of within-period trades. This paper introduces a stochastic version the Hahn process model and demonstrates that a linear approximation to this stochastic model yields an autoregressive process with a near unit root when the adjustment rate is low. In effect, the autoregressive price adjustment model studied extensively by time series econometricians over the past 30 years can be viewed as a reduced form of a stochastic disequilibrium exchange economy price adjustment model. Estimation of the model demonstrates that price adjustment in the exchange economy experiment is considerably slower than in economies without income effects, which suggests that the price discovery process may be a significant factor in the slow adjustment documented by applied econometricians.     

Price adjustment in an atomistic market

This paper considers the price adjustment process in a market which retains the characteristics of a perfectly competitive market except that individual firms are price-setters. Buyers, unaware initially of what prices which firms are charging, indulge in search by contacting a sample of firms and buy (according to a demand curve) from the lowest-price firm encountered. Firms set prices to maximise profits over their perceived (or estimated) demand curve, and update their estimated demand curve in accordance with the observed change in demand between successive time periods. It is shown that the price distribution converges to a degenerate distribution centred on the monopoly price.     

International policy coordination in an uncertain world

The gains from international macroeconomic policy coordination are seen to be a decreasing function of the degree of model uncertainty. In practice, therefore, despite the predictions of most theoretical models, the gains from cooperation may be relatively small.     

Economic integration in an uneven world: an internationalist perspective

This paper discusses two progressive schools of thought that have evolved in response to international neoliberalism and the consequent competitive pressures in global markets emanating from the low-cost conditions obtained in many less developed countries. The paper identifies these as the ‘competitiveness-enhancing’ and the ‘competition-reducing’ approaches. The former is shown to be ill-suited to present circumstances of the global economy and, in any event, nationalist. The latter seeks to minimize the adverse consequences of international neoliberalism, and comprises proposals for expansive social charters and social tariffs. The paper provides a theoretical basis for this approach, and discusses the strengths and weaknesses of each of these proposals. The paper then develops and defends a new multilateral, rule-based trade proposal, called the ‘social index tariff structure’ (SITS), which would reward nations for high levels of development achieved relative to their economic means. Drawing on human development data from the Human Development Report (1993), a SITS-based trading scheme is developed for 77 countries. It is argued that a SITS regime would serve to protect the quality of life in developed countries while promoting human development in the less developed countries. The SITS proposal is assessed against Amartya Sen's ‘capabilities to achieve functionings’ approach to human development.     

Price manipulation in an experimental asset market

We analyze in the laboratory whether an uninformed trader is able to manipulate the price of a financial asset by comparing the results of two experimental treatments. In the benchmark treatment, 12 subjects trade a common value asset that takes either a high or a low value. Only three subjects know the actual value of the asset while the market is open for trading. The manipulation treatment is identical to the benchmark treatment apart from the fact that we introduce a computer program as an additional uninformed trader. This robot buys a fixed number of shares in the beginning of a trading period and sells them again afterwards. Our main result shows that the last contract price is significantly higher in the manipulation treatment if the asset takes a low value and that private information is very well disseminated by both markets if the value of the asset is high. Finally, even though this simple manipulation program loses money on average, it is profitable in some instances.     

Endogenous trade bloc formation in an asymmetric world

This paper investigates how variations in endowments and the structure of preferences impact on the coalition formation decisions of asymmetric countries. There exist relatively few general results on the relationship between country characteristics and trade bloc formation. Here, new light is shed on this issue by systematically simulating bloc formation and by explicitly analysing the blocking behaviour of coalitions. A general equilibrium model of world trade is implemented with equilibrium coalition formation being modelled using the equilibrium concept of the core. It is found that global free trade is observed when all countries are similar. Customs unions tend to form between countries with ‘adjacent’ consumer preferences or with ‘adjacent’ endowments of their export commodity. Finally, in contrast to the existing literature but consistent with observed behaviour, it is found that free trade areas often Pareto dominate customs unions, provided consumer preferences differ sufficiently.     

Training policies and economic growth in an evolutionary world

The role of training and human capital accumulation as a source of innovation and growth is studied within an evolutionary microsimulation model. Firms within the model learn about technology through radical/incremental innovation and imitation. General human capital increases the probability of innovation whereas specific human capital increases technical efficiency. Firms endogenously determine the level of investment in fixed and current assets, R&D activities, and education and training. Human capital accumulation through investment in education and training is shown to be a source of economic growth even though firms tend to under-invest in these activities because they cannot fully recoup training costs when workers quit. The paper investigates the effects of various training policies on macro-performance. The first policy is to subsidise all education and training activities. The second policy requires firms to spend a certain percentage of the wage bill on training activities. In the third case, the government subsidises training activities if the firm hires unemployed people, and pays the social security contributions for 1 year. We experiment with these policies because many European countries adopt similar policies to cure the unemployment problem and to enhance economic growth. By running 101 experiments for each policy, increasing the parameter value step by step, we are able to test the impact of training policies on macro-economic performance (manufacturing growth rates, unemployment, etc.), and to estimate policy elasticities through econometric techniques. The results suggest that some subsidy policies are effective in improving the long-run macro-performance while a minimum requirement to train set upon firms is not.     

Barriers to knowledge spillovers and regional convergence in an evolutionary model

This paper will present a multi-region/multi-country model in which inter-regional knowledge spillovers determine the growth of regions. Key parameters in the model are the learning capability of a region and the rate of knowledge generation (R&D). The intensity of spillovers depends on geographical distance between regions. The model is investigated by means of simulation techniques. What results is a core-periphery situation, the exact form of which depends on the assumed spatial structure. The impact of economic integration is investigated by introducing barriers-to-knowledge-spillovers in the model in the form of borders between countries. Contrary to the popular belief and some economic theories, we find that removing such spillover barriers may result in larger disparity of income levels between regions.     

Buyer Subsidies in an Equilibrium Model of Price Dispersion

Abstract. We present a model of equilibrium price dispersion in which a per-unit subsidy to buyers can reduce average prices. The reason is that subsidies have two effects on average prices that work in opposite directions. First, subsidies raise buyers' willingness-to-pay, and by itself this causes firms to charge higher prices. However, since a higher willingness-to-pay lowers the relative cost of search, subsidies also induce more search. This creates a second effect that puts pressure on firms to reduce prices. We show that the second effect can dominate, thus causing an overall reduction in average price.