We examine financial intermediation when banks can offer deposit or loan contracts contingent on macroeconomic shocks. We show that the risk allocation is efficient provided there is no workout of banking crises. In this case, banks will shift part of the risk to depositors. In contrast, under a...

We suggest a development-compatible refunding system designed to mitigate climate change. Industrial countries pay an initial fee into a global fund. Each country chooses its national carbon tax. Part of the global fund is refunded to developing and industrial countries, in proportion to the...

Politicians tend to push the amount of public debt beyond socially desirable levels in order to increase their reelection chances. We develop a model that provides a new explanation for this behavior: office holders undertake debt-financed public projects, but postpone the timing of part of the...

We develop a model that incorporates salient features of growth in modern economies. We combine the expanding-variety growth model through horizontal innovations with a hierarchy of basic and applied research. The former extends the knowledge base, while the latter commercializes it. Two-way...

We study the interplay between basic and applied research intensities in a simple model of creative destruction with research complementarities. Basic research intensity is chosen by the government and applied research intensity by the private sector. We find that the closer the country is to...

We examine the provision of public projects under tax and subsidy rules. We find that tax rules separated from project cum subsidy decisions exhibit several advantages when incentive problems of the agenda-setter are taken into account. In particular, tax rules may prevent the proposal of...

We examine debt-sensitive majority rules. According to such a rule, the higher a planned public debt, the higher the parliamentary majority required to approve it. In a two-period model we compare debt-sensitive majority rules with the simple majority rule when individuals differ regarding their...

We propose a formal concept of the power of voice in the context of a simple model where individuals form groups and trade in competitive markets. Individuals use outside options in two different ways. Actual outside options reflect the possibility to exit or to join other existing groups....

We study the allocation of commodities through a two-stage hierarchy of competitive markets. Groups or countries trade at global prices while individuals within a group trade at local prices. We identify the free trade and the autarky equilibrium as polar cases. We show that no other two-stage...

We examine whether the publication of forecasts concerning the likely future conduct of monetary policy is socially desirable. Introducing a new central bank loss function that accounts for the deviations from announcements, we incorporate forecasts about future inflation and interest rates into...