Based on a modified Spatiotemporal Autoregressive Model (STAR), we analyze whether borders still constitute significant impediments to labor market integration in the European Union, despite the formal law of free movement of labor. Using regional data from the EU-15 countries over 21 years, we...

This paper studies the consumption decisions of agents who face costs of acquiring, absorbing and processing information. These consumers rationally choose to only sporadically update their information and re-compute their optimal consumption plans. In between updating dates, they remain...

This paper analyses the return intentions of migrant workers. An intertemporal model is developed where the point of return to the home country is endogenous. The analysis emphasizes three explanations of why it should be optimal to migrate only temporarily: differences in relative prices in the...

This paper studies optimal dynamic tax policy under the threat of political reform. A policy will be reformed ex post if a large enough political coalition supports reform; thus, sustainable policies are those that will continue to attract enough political support in the future. We find that...

Expanding credit access is a key ingredient of development strategies worldwide. Microfinance practitioners, policymakers, and donors have ambitious goals for expanding access, and seek efficient methods for implementing and evaluating expansion. There is less consensus on the role of consumer...

Most-favoured-nation (MFN) trade liberalizations will always improve global economic welfare provided globally optimal environmental, and other, policies are in place. But since the latter proviso is not met in practice, empirical studies of the environmental and resource depletion effects of...

The stabilisation of GHG atmospheric concentrations at levels expected to prevent dangerous climate change has become an important, global, long-term objective. It is therefore crucial to identify a cost-effective way to achieve this objective. In this paper we use WITCH, a hybrid...

How can a non-democratic ruler provide proper incentives for state bureaucracy? In the absence of competitive elections and separation of powers, the ruler has to be well-informed himself, and to gather information he may use either a secret service or the media. The danger of using a secret...

International negotiations for an agreement to reduce the emission of greenhouse gases are unlikely to produce concrete and comprehensive policies for effective emission reductions in the near term, not least because the policy measures being considered are economically very costly to major...