The results of the work of the Conference on Tax Coordination in the European Community appear at a time when the Community has undertaken, as a priority task, the completion of the internal market. The Commission's programme and proposed timetable for the achievement of that goal are spelt out in the White Paper, which was endorsed by the European Council at Milan in June 1985, an endorsement which was repeated at the Council's subsequent meeting in Luxemburg in December 1985. The Commission wholly endorses the views of the Conference as regards the need for urgent action to remove the grave restrictions on the free movement of the factors of production which continue to exist within the Community. It is the Commission's firm view that only a true dismantling of fiscal frontiers can permit the creation of an area without internal frontiers for which the Single European Act provides. To that end a certain approximation of rates of indirect taxation is indispensable if unacceptable distortion of competition is to be avoided. It is noteworthy that the Conference attaches great importance to the Community's problems in the field of direct taxation. This work will be particularly useful to the Commission, which intends to produce a further White Paper on company taxation in the near future. As the Conference rightly notes, action in this field is important for equalisation of the conditions of competition necessary for the completion of the internal market.

Growing populations and economies have increased the public's awareness that the world's environmental resources are finite. The issues of global warming and the depletion of the ozone layer have given universal significance to what were once local and regional pollution problems. What is evident from Public Economics and the Environment in an Imperfect World is that Coasian negotiations fail to internalize the costs of environmental degradation, often calling for public intervention through the market mechanism. In its consideration of such issues the book includes contributions on assessment problems, institutional aspects, the need for coordination and efficiency, and distribution issues.

Serious research into the causes and implications of an aging population is a relatively recent phenomenon. Though several relevant issues of aging havereceived considerable attention in public and political discussions (especially in European countries and in Japan), the economics profession is somewhat lacking behind. This is particularly true for thetheoretical underpinnings of the economics of population aging. Until now, the aging-debate is primarily led by institutionalists. The present book with its analytical and econometric studies on fiscal implications of population aging is an important step in the process of theoretical analysis of aging. It is of interest both for population economists (and demographers) and for public economists - providing a bridge between these areas of research.

The papers in this volume review and evaluate the wave of income tax reforms that have taken place in the industrial world over the last five years. The key issues which are singled out include the effect of the income tax on labor supply, the tax unit, the relationship with social security taxes, the taxation of capital income, international issues and the political economy of income taxation. Special attention is given to the choice between income and consumption as the appropriate tax base on efficiency and horizontal equity grounds.

Growing populations and economies have increased the public's awareness that the world's environmental resources are finite. The issues of global warming and the depletion of the ozone layer have given universal significance to what were once local and regional pollution problems. What is evident from Public Economics and the Environment in an Imperfect World is that Coasian negotiations fail to internalize the costs of environmental degradation, often calling for public intervention through the market mechanism. In its consideration of such issues the book includes contributions on assessment problems, institutional aspects, the need for coordination and efficiency, and distribution issues.

Following the introduction of the euro, the European Union has started to debate the desirability and feasibility of more co-ordination in the field of capital income taxation, but a broad, tax-policy type of discussion is lacking. The papers in this volume fill this void, addressing the question of whether and where capital income should be taxed, the issues that arise in taxing equity income and imposing a withholding tax on interest, specific comprehensive proposals for taxing capital income in open economies, and the difficulties of and alternatives to maintaining separate corporate income taxes in the EU.