It is widely recognised that optimal tax/transfer schemes will generally involve elements of both 'tagging' (the use of categorical benefits) and 'means-testing' (Income-relation of benefits). This paper explores the optimal design of such mixed schemes. Simulations suggest a striking...

This paper aims to establish and explore the links between two threads in the public finance literature. One is the use of tax thresholds to partition taxpayers into those who are liable to pay tax and those who are not. The other is the notion of ‘informality’ as a central challenge for tax...

The purpose of this paper is to develop a model that isrich enough to capture some of the central features of the interaction between national tax systems in an integrated world but simple enough to yield sharp insights into some of the central questions which that interaction raises. The...

This paper is concerned with the optimal use of income information in the design of tax/transfer systems to alleviate poverty. The issue is one of optimal non-linear income taxation, but using a non-welfarist objective function that seems to accord well with the common concerns of policy debate:...

Closer international integration is putting increasing pressure on existing national tax structures. this paper uses a simple two-country model to address a range of policy concerns that consequently arise, focusing particularly on the role of national size. Differences in size exacerbate the...

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The introduction of variable labor supply raises some fundamental issues in analyzing the targeting of poverty alleviation programs in developing countries. It forces a reconsideration of the standard objective function, which is based on income or expenditure and so makes no allowance for the...

Closer international integration is putting increasing pressure on existing national tax structures. This paper uses a simple two-country model to address a range of consequent policy concerns, focusing particularly on the role of country size. Differences in size exacerbate the inefficiency...

There has been much discussion recently of structuring tax and transfer programs to ensure that resources go to the poor, with minimal leaks to the nonpoor. The poor have no incentive to earn income with 100 percent marginal tax rates, but how high or low the marginal rate of taxation should be,...