The illicit dealing in gemstones (including diamonds) is a fast growing activity in African countries which produce these minerals. Zaire and Angola are two extreme examples, but by no means exceptions. The preferred policy efforts to controlling the flow of illicit trade in gems have been...

Genuine saving measures net investment in produced, natural and human capital. It is a necessary condition for weak sustainable development that genuine saving not be persistently negative. However, according to data provided by the World Bank, resource-rich countries are systematically failing...

Genuine saving is an established indicator of weak sustainable development that measures the net level of investment a country makes in produced, natural and human capital less depreciation. Maintaining this net level of investment above zero is a necessary condition for sustainable development....

As tradeable permit programmes mature, two inter-related issues are becoming more critical in creating viable responses to a long-term, highly uncertain environmental problem such as climate change. First, we need to update policies in response to new information; and second, we need to design...

Elbert Dijkgraaf defended his PhD-thesis 'Regulating the Dutch Waste Market' at 5 november 2004. This thesis analyses whether the risen costs of waste collection and treatment can be diminished by changing policy instruments. The thesis shows that user fees are very effective in reducing the...

We summarize the main features and results of the literature on marginal commodity tax reforms as initiated by Ahmad and Stern (1984) and developed further by Yitzhaki and Thirsk (1990). We establish new links with other fields of research, namely the literature on the use of equivalence scales...

Current analysis addresses an apparently critical issue of wealth circulation in the society. In the form of three persons game, we put the welfare-related burden on taxpayers. The Negotiator No.1 stands up for citizens’ legal and moral right to social services. The Negotiator No.2 proceeds...

Current analysis addresses an apparently critical issue of wealth circulation in the society. In the form of three persons game, we put the welfare-related burden on taxpayers. The Negotiator No.1 stands up for citizens’ legal and moral right to social services. The Negotiator No.2 proceeds...

Current analysis addresses an apparently critical issue of wealth circulation in the society. In the form of three persons game, we put the welfare-related burden on taxpayers. The Negotiator No.1 stands up for citizens’ legal and moral right to social services. The Negotiator No.2 proceeds...