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I explore the effects of economic and political integration on economic growth in a model of vintage human capital and sequential intergenerational bargains. Adoption of a new technology raises not only the productivity but also the bargaining position of the future generations, creating a bias for the current generations to preserve the current technology. Economic integration (i.e., the sharing of frontier technology among countries) promotes growth if there is a diversity in human capital distribution or a coordination failure across countries. On the other hand, political integration (i.e., the merging of countries into a single bargain) promotes stagnation as it eliminates the diversity and coordination failures.

Mobility restrictions (e.g., severance payment, life-long tenure, and divorce ban) are widely observed. I present a partnership model that highlights the 'break-up externality' (i.e., the negative effect of a person's break-up decision on his current partner). Under this externality, there is too much searching for new partners and too much breaking-up of existing partnerships. Restrictions such as a break-up payment and break-up ban can reduce the levels of searching and breaking-up and improve welfare. Thus the paper rationalizes mobility restrictions as welfare-improving arrangements. (Copyright: Elsevier)

We examine the role of organized labour in the restructuring experience of two coal-mining regions in the 1990s. Under similar external circumstances, the Czech Republic’s Ostrava region underwent gradual restructuring from early on whereas Romania’s Jiu Valley region went through no restructuring until 1997 followed by massive layoffs over 2 years. We conduct a quantitative exercise that accounts for mine productivity, labour market conditions and the constraints in compensating laid-off miners. We show that the Jiu Valley’s delay in restructuring was inefficient. Gradual restructuring with compensation would have benefited both the miners and the government. The proximate reason for the delay was the Jiu Valley miners’ action against restructuring. We discuss what motivated their action and why it was effective.

I present a model of a proprietary regime with opportunities for direct production (e.g., plantation cultivation, mining extraction). The premise is that direct production is a superior method of appropriation than taxation. The tax and spending policy of the regime distorts the resource allocation in favor of direct production and at a loss of private production; the welfare of the population suffers while the regime benefits. I examine the relevance of the model to the policies of actual proprietary regimes.

I present a model in which the employment contract includes severance payment as an instrument for achieving optimal separation between the firm and the worker. I show that the privately optimal severance payment from the model can replicate the level and the variation in actual severance payments (and notice periods) across OECD countries. I conduct a policy experiment in which the existing unemployment benefits are financed by a separation tax. Under this policy, the actual severance payments need to change only marginally in order to achieve socially optimal separation.