We present a simple model of petroleum exploration and development that can be applied to study the performance of alternative tax systems and identify potential distortions. Although the model is a highly simplified, it incorporates many factors and some of the key tradeoffs that would...

An empirical finding by Gaspar, Jaramillo and Wingender (2016) shows that once countries cross a tax-to-GDP threshold of around 12 3/4 percent, real GDP per capita increases sharply and in a sustained manner over the following decade. In this paper, we attempt via four case studies-Spain, China,...

Is there a minimum tax to GDP ratio associated with a significant acceleration in the process of growth and development? We give an empirical answer to this question by investigating the existence of a tipping point in tax-to-GDP levels. We use two separate databases: a novel contemporary...

Would better state institutions increase tax collection, or would higher tax collection help improve state institutions? In the absence of conclusive guidance from theory, this paper searches for an empirical answer to this question, using a panel dataset covering 110 non-resource-rich countries...

This paper revisits the effects of corruption on the state's capacity to raise revenue, building on the existing empirical literature using new and more disaggregated data. We use a comprehensive dataset for 147 countries spanning 1995-2014, compiled by the IMF. It finds that-consistent with the...

Mali’s gold sector is an enclave with weak forward and backward linkages with the rest of the economy. Given the predominance of the fiscal transmission channel, it is important that the design of the mineral tax regime gives the state a fair share of the benefits. Using optimal control...

Deepening globalization and associated or parallel technological and institutional developments are creating conditions which may reduce the industrial countries’ ability to sustain high levels of taxation. The paper identifies and discusses eight trends which may generate revenue falls. It...

This paper provides an overview of diamond mining in sub-Saharan African countries, and explores the reasons for substantial differences in their tax rates and fiscal revenues from the sector, which mainly arise from differences in the incentives for smuggling. In a theoretical model, we show...

From the early 1960s to the early 1980s, the officially recorded production of cocoa in Ghana declined by 60 percent. During the 1983–95 Economic Recovery Program, however, cocoa production doubled. Although these developments have inspired much empirical research, most of the studies have...