ENDOGENOUS TIMING IN A MIXED DUOPOLY: WEIGHTED WELFARE AND PRICE COMPETITION*

In this paper we analyse the endogenous order of moves in a mixed duopoly for differentiated goods. Firms choose whether to set prices sequentially or simultaneously. The private firm maximises profits while the public firm maximises the weighted sum of the consumer and producer surpluses (weighted welfare). It is shown that the result obtained in equilibrium depends crucially on the weight given to the consumer surplus in weighted welfare and on the degree to which goods are substitutes or complements. We also analyse whether the equilibria obtained maximise the sum of the consumer and producer surpluses or not. Finally we study whether the nationality of the private firm influences the results.     

INTERNATIONAL WELFARE AND EMPLOYMENT LINKAGES ARISING FROM MINIMUM WAGES*

We formulate a two‐country model with monopolistic competition and heterogeneous firms to reconsider labor market linkages in open economies. Labor market imperfections arise by virtue of country‐specific real minimum wages. Abstracting from selection of just the best firms into export status, standard effects on marginal and average firm productivity are reversed in our model, yet there are significant gains from trade arising from employment expansion. In addition, we show that with firm heterogeneity an increase in one country’s minimum wage triggers firm exit in both countries and thus harms workers at home and abroad.     

U.S. SHIPPING SUBSIDIES AND OCEAN SHIPPING OF PETROLEUM: POLICY CHOICES

United States oil imports are predominantly carried in non-U.S. ships, a fact that some interpret as an energy security problem whose solution lies in increasing federal assistance to U.S. shipbuilding and shipping industries. This paper examines three options (one regulatory, two budgetary) for such federal assistance. Examination of the options comprises estimates of relative costs, consequences for traditional U.S. maritime goals, and implications for national security. The options are found to differ significantly in respect to relative cost and capacity to meet military security needs. As background, the paper also analyzes the costs of U.S. shipbuilding and shipping industries relative to their foreign counterparts. It thereby indicates why, and how much, federal assistance would be required to satisfy national security goals. The paper concludes that the regulatory policy option (cargo preference) has the highest relative cost and is the least effective for meeting national security goals.     

R&D INCENTIVES UNDER BERTRAND COMPETITION: A DIFFERENTIAL GAME*

We investigate dynamic R&D for process innovation in an oligopoly where firms invest in cost‐reducing activities. We focus on the correlation between R&D intensity and market structure, proving that the industry R&D investment at equilibrium monotonically increases in the number of firms. This result contradicts the established wisdom acquired from static games on the same topic. We also prove that, if competition is sufficiently tough, any increase in product substitutability reduces R&D efforts.     

COMPETITION,REGULATION AND WELFARE IN THE PRESENCE OF NETWORK EXTERNALITIES*

In this paper we consider a simple model of an industry with network externalities, where a benefit to each consumer from network services depends on the size of the network. We first consider a single network and cover the cases with and without fixed cost of entry. We then turn to the two‐network industry, where the incumbent network and a new entrant network compete for the market and may differ both in their marginal costs and demand structures. In addition, we identify several situations where public policy may play a crucial role in sustaining socially advantageous network service provision.     

GROWTH,INTER‐INDUSTRY AND INTRA‐INDUSTRY COMPETITION AND WELFARE*

In this paper we introduce strategic interaction between firms in an R&D growth model which captures both the intra‐industry competition between firms operating within an industry and the inter‐industry competition between firms in different industries. We show that the more substitutable the goods produced within each industry (across industries) are, that is, the more intense the intra‐industry (inter‐industry) competition, the higher is the growth rate. In the comparison between social optimum and a decentralized economy, it is shown that the market outcome is characterized by inefficiently high entry of firms within each industry and insufficient productivity growth.     

QUALITY DIFFERENTIATION,WELFARE, AND THE MODE OF COMPETITION IN A VERTICALLY DIFFERENTIATED PRODUCT MARKET: A NOTE*

We analyse the implications of quality differences in a vertically differentiated product market for social welfare by employing an endogenous quality choice model. We find that in of Bertrand and Cournot duopolies, the degree of quality differentiation at equilibrium in an unregulated market is larger or smaller, respectively, than that of the socially second‐best optimum. This implies that a reduction in quality difference, respectively, increases or decreases social welfare in the case of Bertrand or Cournot duopolies.     

REGULATION,IMPERFECT COMPETITION,AND THE U.S. ABORTION MARKET

The U.S. abortion market has grown increasingly concentrated recently, while many states tightened abortion laws. Using data on abortion providers, I estimate an equilibrium model of demand, price competition, entry and exit, to capture the effect of regulation on industry dynamics. Estimates show regulations played an important role in determining the abortion market structure and evolution. Counterfactual simulations reveal increases in demand‐aimed regulation were the most important observed factor in explaining recent abortion declines. Simulating Utah's regulatory regime nationally shows tightening abortion restrictions can increase abortions in equilibrium, mainly through tilting the competitive landscape toward low‐price providers.     

A QUANTITATIVE ANALYSIS OF SUBURBANIZATION AND THE DIFFUSION OF THE AUTOMOBILE*

Suburbanization in the United States between 1910 and 1970 was concurrent with the diffusion of the automobile. A circular city model is developed in order to access quantitatively the contribution of automobiles and rising incomes to suburbanization. The model incorporates a number of driving forces of suburbanization and car adoption, including falling automobile prices, rising real incomes, changing costs of traveling by car and with public transportation, and urban population growth. According to the model, 60% of postwar (1940–1970) suburbanization can be explained by these factors. Rising real incomes and falling automobile prices are shown to be the key drivers of suburbanization.     

U.S. IMMIGRATION REFORM: POLICY ISSUES AND ECONOMIC ANALYSIS

In recent years, legal U. S. immigration has approached historically high levels, and illegal immigration has been thought to be high and perhaps rising. Consequently, the Select Commission on Immigration and Refugee Policy proposed sweeping changes in the nation's immigration laws. During 1984, both the Senate and House passed the Immigration Reform and Control Act (Simpson-Mazzoli Bill). This bill subsequently died in the conference committee that was established to reconcile differences between the bill's two versions. The proposed act has three major provisions: (1) control of illegal immigration, (2) legalization of alienstatus, and (3) reform of legal immigration. Both the House and Senate versions would maintain the present orientation of U.S. immigration policy toward family reunification, but the Senate proposed significant changes in legal immigration restrictions that would shift policy slightly more toward labor considerations. These proposed changes were eliminated in the compromise made in the conference committee. Employer sanctions and legalization of illegal aliens were left as the two most prominent alterations to existing policy. During 1985, the 99th Congress is likely to reconsider the Simpson-Mazzoli Bill, perhaps in a streamlined version which emphasizes employer sanctions, legalization, and a substantial increase in border enforcement.     

CURRENCY SUBSTITUTION, U.S. MONEY DEMAND, AND INTERNATIONAL INTERDEPENDENCE

A number of writers have argued in recent years that massive international currency substitution has been a major cause of exchange rate volatility and monetary instability in the United States and other major countries. Such analysis is frequently coupled with recommendations for a return to pegged exchange rates. This paper critically examines the evidence presented for this currency substitution view. It argues that the weight of latest research suggests that direct international currency substitution has not been of major quantitative importance for the U.S. However, empirical evidence supports traditional views that international capital mobility can generate substantial short-run monetary interdependence even under flexible exchange rates. Thus, even though international currency substitution is of little importance to U.S. monetary conditions, a broader range of international considerations may be of considerable importance for the U.S. economy.     

REALIZED COST‐BASED SUBSIDIES FOR STRATEGIC R&D INVESTMENTS WITH EX ANTE AND EX POST ASYMMETRIES*

We discuss stochastic cost‐reducing R&D investments and examine efficient subsidies. We discuss a two‐stage duopoly model in which each firm chooses R&D levels (innovation size and probability of success) in the first stage and competes à la Cournot in the second stage. We find that simple subsidies depending on the realized cost differences induce the efficient levels of R&D with respect to the innovation size and probability of success by two firms regardless of ex ante and ex post asymmetries between the two firms.     

FROM PRIVATE BANKING TO CENTRAL BANKING: INGREDIENTS OF A WELFARE ANALYSIS*

An earlier analysis of Cavalcanti and Wallace showing that the set of allocations achievable using outside (government) money is a subset of those achievable using inside (private) money is extended. Here, the class of outside‐money allocations is enriched by allowing the planner to make transfers in the form of outside money. At the same time, punishments for defection are weakened. It is shown that the subset result continues to hold, although for a different reason than in the Cavalcanti and Wallace analysis.     

A STACKELBERG MODEL OF CHILD SUPPORT AND WELFARE*

This article models the child support and welfare decisions of never‐married parents on welfare as a Stackelberg game. The mother chooses whether to exit welfare, report paternity, and to obtain a formal child support order. If a child support order is obtained, the father chooses whether to comply with the order. Simulation results from the structural parameters indicate that increasing the child support disregard increases paternal compliance slightly and affects maternal paternity reporting more significantly; effects are limited, however, by low paternal incomes. Results also indicate that high award amounts can decrease expected child support payments to women on welfare.     

TOURISM AND DEVELOPMENT POLICY: A QUANTITATIVE APPRAISAL*

Within the last decade the promotion of tourism has gained a prominent place in many development plans. Recently, however, doubts have been cast on previous attempts to analyse its contribution to development. This paper describes a quantitative technique which remedies some of their more obvious defects. The method is then applied to the Turkish situation, and the implications of the results are examined in the light of an explicit policy preference function.     

美国R＆D投入情况分析

本文介绍并分析了美国近年全社会R＆D的投入情况,包括总量、结构和美国联邦政府R＆D投入情况,以及金融危机后政府在科技方面的投入趋势。研究并分析了美国科技预算管理体制及联邦政府科技行政部门在科技预算形成中的作用。美国R＆D预算管理具有多渠道、分散的特点。各个联邦部门科技预算的编制、审核和决策具有相对独立性。     

ECONOMIC FREEDOM AND INCOME LEVELS ACROSS U.S. STATES: A SPATIAL PANEL DATA ANALYSIS

There is a large literature estimating the effect of economic freedom on economic growth or income levels. Most studies examine the relationship between economic freedom and growth or income levels for countries, while a few examine the relationship for U.S. states. Absent in the state‐level literature is consideration of the presence of spatial spillovers affecting the freedom‐income relationship. Neglecting to account for spatial autocorrelation can bias estimation results and therefore inferences drawn. We find evidence of a spatial pattern in real per‐capita gross state product (GSP) that affects nonspatial estimates of the freedom‐income relationship. Taking into account the direct and indirect effects of economic freedom on real per‐capita GSP, we find a 10% increase in economic freedom is associated with a 5% increase in real per‐capita GSP. (JEL E02, O47, R11)