<p><p>Income Tax and National Insurance are now sufficiently similar that merging them appears to be a plausible option, yet still sufficiently different that integration raises significant difficulties. This paper surveys the potential benefits of integration - increased transparency and reduced...</p></p>

In this paper the authors examine the scope of cross-country variation in institutions related to social insurance. Building on the variation they find they assess the value of new micro data that is comparable across countries to help identify key parameters of individual behavior. They present...

This report evaluates the tax-benefit reforms in 1996?2001. The Government appointed a working group in 1995 to plan the tax-benefit reforms. The proposals of the group were first implemented in 1997 and all the measures were carried out by 1998. After 1998 the focus has shifted to improve the...

The contributions in this Explorations section reveal differences across countries in the support systems of the elderly and shows that poverty among the elderly has not been eliminated, even in rich countries. Social insurance systems with an adequate minimum benefit do the best job of avoiding...

In spite of some cutbacks in entitlements, many welfare states' spending has continuously increased over the past decades, leading to larger tax burdens and often higher marginal tax rates. Proposals for reform often facus on reduced social insurance benefits and more actuarial insurance premia....

Since the late 1970s, many state-owned enterprise employees have been laid off and more and more rural people have migrated to urban areas. In this massive laying-off and migration process, many laid-off workers and migrants have become urban poor. Using data collected from a survey on 1641...

We analyze a dynamic moral hazard setting, in which agents can borrow and lend and their decisions about effort, consumption and savings are private information. In contrast with previous findings, we show that as long as agents do not have perfect control over publicly observable outcomes, the...

The paper examines the influence of altruism on voluntary transfers and government redistribution in a simple model: two jobs of different productivity are assigned by chance to two individuals. Ex ante the individuals are identical, ex post they have different incomes. The first part of the...

The paper presents a tractable general equilibrium model of search unemployment that incorporates absence from work as a distinct labor force state. Absenteeism is driven by random shocks to the value of leisure that are private information to the workers. Firms offer wages, and possibly sick...

The paper investigates the consequences of outsourcing of labor intensive activities to low-wage economies. This trend challenges the two basic functions of the welfare state, redistribution and social insurance when private unemployment insurance markets are missing. The main results are: (i)...