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We show that, even with flexible domestic wages, international outsourcing may worsen the welfare of the home country and reduce the profits of all firms. If wages are rigid, outsourcing is welfare-improving if and only if the sum of the “trade creation” effect and the “exploitation effect” exceeds the “trade diversion” effect. A wage subsidy may improve welfare. We also extend the model to a two-period framework. Delaying outsourcing can be gainful because the fixed cost of outsourcing may fall over time. A social planner would choose a different speed of outsourcing than that achieved under laissez-faire.

Purpose – This chapter suggests that the value of the extension to free trade areas (FTAs) of the Kemp–Wan (KW) theorem on necessarily welfare-improving customs unions is undermined by its very rationale – the greater popularity of FTAs over customs unions for ‘political’ reasons.

Methodology/approach – We discuss some intuition supported by partial equilibrium diagrammatic analysis and then present simulations of a global CGE model.

Findings – We argue that this sort of FTA will likely be unattractive to potential member countries. We then observe that the external tariffs here and in KW will be identical for many goods but illustrate, in a partial equilibrium setting, a context in which there might be some difference between them. Nevertheless, our analysis suggests that there are reasons to expect some harmonisation of tariffs between member countries in this sort of FTA.

Originality/value – We are the first to question the practical value of the extension of KW to FTAs. We also provide one of the few computable general equilibrium analyses of KW customs unions.

Purpose – To evaluate the efficiency consequences of the Medicare Part D program.

Methods – We develop and empirically calibrate a simple theoretical model to examine the static and the dynamic welfare effects of Medicare Part D.

Findings – We show that Medicare Part D can simultaneously reduce static deadweight loss from monopoly pricing of drugs and improve incentives for innovation. We estimate that even after excluding the insurance value of the program, the welfare gain of Medicare Part D roughly equals its social costs. The program generates $5.11 billion of annual static deadweight loss reduction and at least $3.0 billion of annual value from extra innovation.

Implications – Medicare Part D and other public prescription drug programs can be welfare-improving, even for risk-neutral and purely self-interested consumers. Furthermore, negotiation for lower branded drug prices may further increase the social return to the program.

Originality – This study demonstrates that pure efficiency motives, which do not even surface in the policy debate over Medicare Part D, can nearly justify the program on their own merits.

Empirical studies show that years of schooling are positively correlated with good health. The implication may go from education to health, from health to education, or from factors that influence both variables. We formalize a model that determines an individual’s demand for knowledge and health based on the causal effects, and study the impacts on the individual’s decisions of policy instruments such as subsidies on medical care, subsidizing schooling, income tax reduction, lump-sum transfers, and improving health at young age. Our results indicate that income redistribution policies may be the best instrument to improve welfare, while a medical care subsidy is the best instrument for longevity. Subsidies to medical care or education would require large imperfections in these markets to be more welfare improving than distributional policies.

In this chapter I put forward a framework to help us understand the underlying sources of national policy failures regarding intellectual property rights (IPR) protection, the need for international coordination, and how the coordination should be done. I also analyze whether global harmonization of IPR standards is necessary or sufficient for achieving globally welfare-maximizing policies. Then I move on to analyze the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS), which is a mighty effort to coordinate IPR policies across member countries of the World Trade Organization (WTO). I discuss what TRIPS was supposed to do and what it has actually achieved, with reference to my theoretical framework. I explain that it is desirable for IPR to be included in world trade talks and be negotiated along with other trade issues. I offer analyses on the extensions of the basic model by introducing political economy and trade barriers, as well as allowing countries to discriminate against foreign firms. Finally, I comment on further potential extensions such as introduction of foreign direct investment (FDI) or licensing, parallel imports, cumulative innovations, subject matter of protection and costs of implementation. The main thrust of the basic model is that, provided that there is free trade and non-discrimination of foreign firms, there exist positive cross-border externalities as a country strengthens its IPR protection, since it raises the profits of foreign firms and the welfare of foreign consumers without causing any deadweight loss on foreign soil. This implies that national governments tend to provide too little IPR protection compared with the global optimum. The model also implies that a country with higher innovative capability and larger domestic market would provide stronger IPR. Thus, it is natural for the South to protect IPR less than the North in the absence of international coordination. These basic results largely continue to hold under various extensions.

We discuss the connections between epidemiology models and the search and matching (SAM) approach and draw conclusions about modeling the trade-offs between lockdowns and disease spread. We review the pre-COVID epidemics literature, which was mainly by epidemiologists, and the post-COVID surge in economics papers that use meeting technologies to model the trade-offs. We argue that modeling the decentralized equilibrium with economic trade-offs gives rise to substantially different results from the earlier epidemics literature, but policy action is still welfare-improving because of several externalities.

Purpose – This chapter examines whether a small open economy in the presence of a nontraded good produced under a monopolistically competitive market and foreign capital inflow can raise its national welfare by adopting trade liberalization coupled with foreign economic aid.

Methodology/approach – The chapter employs a general equilibrium, comparative static analysis of a small open economy involving two factors and two industries.

Findings – It is shown that an import tariff can raise the welfare of a country or impoverish it, depending on the production and trade structures and preferences of the country, but foreign economic aid is always welfare enhancing. Thus, even when a tariff reduction reduces national welfare, the government still has an incentive to adopt the policy combination of trade liberalization and foreign economic aid.

Originality/value of paper – The results obtained explain a widely recognized fact that economic aid by developed donor countries, trade liberalization and capital market liberalization typically take place simultaneously in developing recipient countries.

This chapter provides a formal analysis of the economic welfare effects for large and small partners to free trade agreements. Michaely (1998) has demonstrated that large country welfare is U-shaped in the small country's size. I derive the welfare for the large country for all possible small country sizes, and show that the maximum possible loss for the large country is twice its tariff revenue. I identify the data necessary to estimate the welfare effects and consider how initial trade volumes, tariffs, and international price differences affect the large country's welfare.