(Non-)Existence of Equilibria in Multicommunity Models

This paper reconsiders equilibrium existence in models with migration and voting over local public goods. We show that under some straightforward assumptions on preferences and income distributions, the basic structure of multicommunity models (i.e., perfect mobility, majority rule, single crossing property) implies that no equilibrium with jurisdictions conducting different policies can exist. Stratification equilibria—with sorting of the population according to income classes—are therefore not as natural as is sometimes suggested. Mechanisms that can serve to support stratification (i.e., tight housing markets, returns to scale in the provision of publicly consumed goods) are discussed.     

The Politics of Social Pacts

The paper develops an analytical framework for the politics of negotiated voluntary wage restraint in the context of social pacts. It argues that, in contrast to earlier political exchanges, tripartite negotiations on wage restraint under restrictive economic policies are not based on a political exchange whereby governments had to compensate trade unions for wage restraint. Rather, governments can threaten trade unions with tight monetary policy and trade unions can either engage in negotiated adjustment or suffer restrictions. Social pacts are therefore an instrument of adjustment by governments to a new economic environment, and not a tool of economic policy.     

Military expenditure in post-conflict societies

Post-conflict situations face a high risk of reversion to conflict. We investigate the effect of military expenditure by the government during the first decade post-conflict on the risk of reversion. We contrast two theories as to the likely effects. In one, military spending deters conflict by reducing the prospects of rebel success. In the other it acts as a signal to the rebels of government intentions. In the signalling model, low military spending signals that the government intends to adhere to the terms of the peace settlement and so reduces the risk of renewed rebellion. We investigate the effects of post-conflict military spending on the risk of conflict, using our existing models of military expenditure and of conflict risk. We find that, consistent with the signalling model, high military spending post-conflict significantly increases the risk of renewed conflict. This effect of military spending is distinctive to post-conflict period, and becomes progressively more pronounced over the decade. Received: April 2004, Accepted: December 2004, JEL Classification: H56, F35, O10     

Unintended Consequences: Does Aid Promote Arms Races?*

Using global data for the period 1960–99, we model military expenditure. Neighbours’ military spending and development aid are important determinants of military expenditure. An implication of the model is that there are regional arms races which are fuelled by aid. Potentially, aid is encouraging a ‘regional public bad’. There may, however, be an offsetting public good effect if military spending deters rebellions. In a simultaneous equation model, we find no deterrence effect of spending on the risk of civil war. Hence, there appears to be no regional public good effect offsetting the public bad arising from a neighbourhood arms race.     

Flight Capital as a Portfolio Choice

This article sets flight capital in the context of portfoliochoice, focusing on the proportion of private wealth that isheld abroad. There are large regional differences in this proportion,ranging from 5 percent in South Asia to 40 percent in Africa.The authors explain cross-country differences in portfolio choiceusing variables that proxy differences in the risk-adjustedrate of return on capital. They apply the results to three policyissues: how the East Asian crisis affected domestic capitaloutflows; the effect of the International Monetary Fund–WorldBank debt relief initiative for heavily indebted poor countrieson capital repatriation; and why so much of Africa's privatewealth is held outside the continent.     

Shipping fee schedules and return behavior

Marketing Letters - We study the influence of shipping fee schedules on the return behavior of customers. Based on a randomized field experiment, we analyze the behavior of visitors of an online...     

More Productive,Less Sustainable? On the Need to Consider Material Resource Flows

In environmental policymaking, the figurative cake that is wanted both to have and eat lies in achieving dematerialisation, i.e. reducing material resource use, and simultaneously pursuing a pathway lined with economic growth. Under such a scenario, we could have it all: increasing production and international convergence at the highest levels of consumption with a reduced impact on the environment in a lifestyle which could also be enjoyed by generations to come. In the following, we make a case for considering the evidence in contemplating the feasibility of such a utopia by taking social metabolism i.e. the material and energy input of society, into account.     

Direct versus intermediated finance: An old question and a new answer

We consider a closed economy where a risk neutral bank competes with a competitive bond market. Firms can finance a risky project either by a bank credit or by issuing a bond which is directly sold to risk averse investors who also hold safe deposits at the bank. We show that the bank tends to allocate more capital to lower quality projects but there are some interesting qualifications. If the asymmetric information concerns only the success probability, then we observe adverse selection while if it concerns only the expected return, bad types are driven out of the market.