The bargaining set of a large economy with differential information

Summary. We study the Mas-Colell bargaining set of an exchange economy with differential information and a continuum of traders. We established the equivalence of the private bargaining set and the set of Radner competitive equilibrium allocations. As for the weak fine bargaining set, we show that it contains the set of competitive equilibrium allocations of an associated symmetric information economy in which each trader has the “joint information” of all the traders in the original economy, but unlike the weak fine core and the set of fine value allocations, it may also contain allocations which are not competitive in the associated economy. Received: February 15, 1999; revised version: August 9, 1999     

On a mixed competitive-monopolistic macrodynamic model in a monetary economy

In this paper we reconsider the dynamic stability of the mixed competitive-monopolistic system in an analytical framework of the macroeconomic growth model in a monetary economy. We construct a simple monetary growth model in the so-called Keynes-Wicksell tradition and investigate how the degree of competition affects the dynamic stability of the system. Our analysis reveals the destabilizing rather than the stabilizing forces of the monopolistic system in amonetary economy contrary to the usual analyses. We also show that the system produces the purely cyclical behavior at some intermediate degrees of competition by using the Hopf-Bifurcation theorem.This paper was written while the author was staying at the New School for Social Research in New York as a visiting research scholar. Special thanks are due to Prof. Willi Semmler for providing the comfortable research environment and to Komazawa University for the financial support. The author is also grateful to Dr. Reiner Franke and two anonymous referees of this journal for their constructive comments and helpful suggestions. Needless to say, however, only the author is responsible for possible remaining errors.     

Home country effects of foreign direct investment: From a small economy to a large economy

Previous studies on home country effects mainly focused on FDI from large developed economies to other countries. But today's super recipient is a relatively larger economy than its investors and many of these investors are not classified as “developed economies.” A simple Ak type model implies that a small and more developed country investing in a large and less developed country will experience decreases in both employment and income disparity (compared to the recipient country) as the less-developed recipient country gains the higher technology of production through FDI inflows. The empirical results for the Four Tigers (source countries) and China (recipient country) are consistent with our theoretical model of FDI outflows. We also find that FDI outflows to China decrease the ratio of exports to GDP only for small source countries, even though a higher investment in China raises the share of these countries' exports-to-China to China's total imports.     

Price changes and optimum taxation in a many-consumer economy

A general equilibrium model of a many-consumer economy with commodity taxation is set up, and comparative static effects of small perturbations are studied. Production involves fixed factors which can be interpreted as repositories for pure profits, thus allowing taxation of profits at arbitrary rates. The question of whether the best local improvement starting from a production efficient point will lead to inefficiency is studied. The main concern is whether it will be optimal to rely on profit taxation alone given that it is feasible to do so. An affirmative answer is obtained in special cases where such policy yields the first best, and when the consumers are scaled replicas of one another.     

The effect of annual changes in automobile fuel economy standards

Since 1978 the Federal government has regulated the fuel economy of new cars sold in the United States. The purpose of Corporate Average Fuel Economy (CAFE) standards is to lessen the national dependence on foreign oil. Through the use of theoretical and empirical models this paper examines the impact of CAFE standards on the automobile industry and on energy consumption. It is shown that CAFE standards may or may not save energy. If CAFE does save energy, it does so at a prohibitive cost to the economy. CAFE standards are also shown to have a number of perverse impacts on the automobile industry as well as consumers.     

Second best welfare economics in the mixed economy

The general problem of measuring welfare for large government projects is considered in a context where the government may interfere with the private market sector in a variety of ways. Measures are decomposed into a pure efficiency part and a pure equity part and it is shown that the efficiency part is measured by integrals under ‘uncompensated’ market demand functions. It is also shown that the efficiency part may be further decomposed into second best contributions due to commodity taxation, monopoly power and quantity constraints.     

The impact from changes in stock market valuations on investment: new economy versus old economy

This paper investigates whether there is a different impact from changes in ‘new’ and ‘old’ economy stock valuations on private investment for seven OECD economies. A vector autoregressive model is estimated for each individual country, using quarterly data over the period 1990–2000. It is found that the impact from changes in valuations of new economy stocks to investment is roughly the same in North America and in the United Kingdom as in continental Europe. By contrast, the impact from changes in old economy stock valuations on investment is, in general, larger in North America and in the United Kingdom than in continental Europe. Finally, the results suggest that in continental Europe the impact on investment from changes in the valuation of new economy stocks is bigger than for old economy stocks, whereas for North America and the United Kingdom, the impact is more similar.     

Core and value for a public-goods economy: An example

An example of a public-goods economy with a continuum of agents is presented in which the Shapley value does not lie in the core.     

The value of the high Aswan Dam to the Egyptian economy

The High Aswan Dam converted a variable and uncertain flow of Nile river water into a predictable and controllable water supply stored in Lake Nasser. We use a computable general equilibrium model of the Egyptian economy to estimate the economic impact of the High Aswan Dam. We compare the actual 1997 economy to the 1997 economy as it would have been if historical pre-dam Nile flows (drawn from a 72 year portrait) had applied (i.e., the Dam had not been built). The steady water supply sustained by the High Aswan Dam increased transport productivity, and year round availability of predictable and adequate water sustained a shift towards more valuable summer crops. These static effects are worth EGP 4.9 billion. Investments in transport and agriculture increased as a consequence; these investments, assuming that Egypt is a small open economy, added another EGP 1.1 billion to the value of the Dam. The risk premium on the reduced variability is estimated to be EGP 1.1 billion for a modest risk aversion, and perhaps EGP 4.4 billion for a high risk aversion. The total gain of EGP 7.1 billion to 10.3 EGP billion equals 2.7% to 4.0% of annual GDP in 1997.     

非公有制经济人士价值取向特点及引领对策

改革开放以来,非公有制经济快速发展,非公有制经济人士队伍不断壮大,其群体构成、思想状况、自身素质、成长环境等都发生了深刻变化。切实准确地分析和掌握非公有制经济人士的价值取向,引导他们按照科学发展观的要求,更新发展思路,破解发展难题,不断提高自身素质、创新能力、管理水平,对于坚定他们的理想信念,对于社会的稳定和经济社会的平稳健康发展,践行社会主义核心价值体系意义重大。     

A comparison between the core and the monopoly solutions in a mixed exchange economy

Summary. Using a mixed market model for analyzing imperfectly competitive economies, we maximize the oligopolists' Welfare Function, given individual rationality and feasibility constraints. We prove that solutions belong to the core for a large class of economies. This class includes, in particular, every monopoly having a single type of small traders. Note that all such solutions yield the large trader, utility-wise, strictly more than at any monopoly solution, where the monopolist plays strategically, and the ocean of small traders act as being as price-takers. Received: March 4, 1996; revised version July 7, 1996     

Output and price effects of enhancing services sector competition in a large open economy

This paper studies the output and price effects of exogenous changes in the degree of competition. It is motivated by initiatives to enhance competition in services in the European Union. The paper shows that a higher degree of competition in the nontradable goods sector may have adverse implications for international price competitiveness. It highlights four channels through which enhanced competition in the non-tradable goods sector affects output and the general price level in a large, open economy (lower monopoly rents, higher wages, lower import prices, international wealth transfer) and assesses their relative importance. The conclusions suggest that the Single Market enhances output and reduces the general price level.     

Operational risk as a function of the state of the economy

This paper examines the frequency and severity of the operational losses incurred by U.S. firms during the period 1990-2007, as reported by Fitch Risk. The losses are examined in relation to the state of the U.S. economy as represented by the unemployment rate, which is the macroeconomic variable that is most intuitively appealing in terms of association with the incidence of operational losses. The results of structural time series modelling reveal that while total severity and average severity are positively related to the unemployment rate, the frequency of losses is not.     

The political economy of public health expenditure and wait times in a public‐private mixed health care system

Abstract This paper investigates the determinants of public health expenditure in a public‐private mixed health care system, where a longer wait time for public care is the major difference between public and private sectors. Voter preferences for health care vary according to their age and by income, and public policy choices are part of a multi‐dimensional, competitive political equilibrium. We show how equilibrium public health expenditure and wait times depend on demographics and explain why they are independent of the distributions of income and political influence. We also show that population aging may not always lead to more public health expenditure.     

The shifting boundaries of the mixed economy and the future of the nonprofit sector

The nonprofit sector exists because it can solve better than for-profit firms problems associated with the provision of products with publicness (nonrivalry or nonexcludability) attributes, or those affected by asymmetric information between providers and customers. This advantage is likely to be eroded in the future by various technological advances, particularly in the area of information transmission, analysis, storage and retrieval, and by the increase in the effective size of markets. Consequently, the demand for nonprofit organizations will possibly decline in the future. On the other hand, the operational efficiency of nonprofit organizations is likely to improve due to possibilities of stricter audit of and control over management made possible by enhanced access by nonprofit stakeholders to budgetary and operational information. This will help nonprofit organizations respond better to various failures of for-profit firms and to the insufficiency of government correctives. It is difficult to forecast the net effect of the myriad factors that work in opposite directions on the demand for and supply of nonprofit organizations, although it appears to this author that the economic weight of nonprofit organizations and their distinctive features will wane.     

The value of nonindigenous species risk assessment in international trade

Managing the introduction of nonindigenous species is becoming a major goal of policy-makers at regional, national and international scales. Here we investigate, at the national level, the ideal design and expected net benefits of a risk assessment program for evaluating the desirability of nonindigenous species imports. We show how to enhance the statistical rigor of such a system by correcting a common non-random sampling problem encountered in the data. This correction enables model output to be interpreted in an economically relevant way and facilitates a theoretically rigorous characterization of the balance between trade and nonindigenous species establishment risk. Using reptiles and amphibians imported to the U.S. as a case study, we characterize economic outcomes over a range of cases and demonstrate substantial expected returns to such a screening program, relative to the current effectively open-door policy. Our results are informative for the current debate in the U.S. about whether to require federal agencies to apply risk assessment before allowing a species for import. The framework presented decomposes a complex argument about risk management into component economic and statistical parts, allowing for debate and improved understanding over each element to inform the overall program in a transparent fashion.