the perspective of economic theory as well as from the perspective of the historical experiences of the countries under … model specification. Model uncertainty consists of two types: theory uncertainty, which relates to which growth determinants … draws from the same statistical model. We propose ways to account for both theory and heterogeneity uncertainty. Finally …

option values, the internal rate of return - a cornerstone of classical human capital theory - is not a useful guide to …

theoretical results are summarized in a number of propositions. We discuss the implications of the theory, comment on its relation …

-specific characteristics such as the level of political freedom are taken into account. Political freedom is shown to explain terrorism, but it … does so in a non-monotonic way: countries in some intermediate range of political freedom are shown to be more prone to … terrorism than countries with high levels of political freedom or countries with highly authoritarian regimes. This result …