Understanding what determines Foreign Direct Investment (FDI) inflows remains a primary concern of economists and policy makers; yet the uncertainty surrounding FDI theories and empirical approaches has created ambiguity regarding the determinants of FDI. This paper applies Extreme Bounds Analysis to identify the robust determinants of FDI using panel data covering 168 countries from 1970 to 2006. We consider 58 potential economic, geographic and political determinants and find that almost one-third are robust, including: openness, education, government spending, corporate tax rate, infrastructure, experience of conflict, democratic governance, natural resources, geographic location, number of borders, coastal location and language.

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The role of public capital in economic growth is examined using data from the Penn World Tables and other sources on a large number of countries. Drawing on intertemporal optimization, the theoretical framework nests the exogenous (Solow) and endogenous types of growth and is data-consistent. It is found that public capital makes a significant contribution to growth. The actual level of investment on public capital is suboptimal. Growth in recent decades can be characterized as 'endogenous' with little sign of convergence. There is evidence of a growth slow-down between the 1970s and 1980s. Human capital also significantly enhances growth.

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With a panel of 18 OECD countries, 198018 OECD countries, -2005 we investigate the determinants of export performance, in particular the effects of the size of government and institutional features. In a model of endogenous extent of domestically-produced goods, government size has a non-linear effect on export performance; the export-maximising size of government (tax receipts) is around 40-45% of GDP; the best size of productive government spending is around 16% of GDP. Product market and labour market-related rigidities affect negatively the export performance both on their own and via a negative effect on the effectiveness of R&D and slow down the speed of adjustment. Among traditional variables, relative unit labour cost, R&D shares in GDP, TFP growth and human capital show up significantly and with the expected signs.