We examine active retail mutual funds and institutional products with a mandate to invest ininternational equity markets between 1991 and 2009. Using global and regional factor models,we find no reliable evidence of alphas in the aggregate or on average. The right tail of thedistribution...

[...]One important theme, common to both views, is thatinvestment is a fundamental part of the growth process.Investment, moreover, may be defined broadly to include anyexpenditure that provides productive payoffs in the future;therefore, measures of human capital and research anddevelopment...

Large and sustained differences in marginal products of capital (MPKs) across countries are sharply at odds with the core implications of the neoclassical framework. Lucas (1990) and many subsequent studies have examined reasons for this MPK differential. In a recent contribution, Caselli and...

In this paper I study the optimal control path for a (capital or pollution) stock which accumulates time with a lag to its control. It is shown that the optimal control path is non-monotonic and cyclical in general, but it is monotonic if the objective function is additively separable in the...

An analytical framework is developed to study the repercussions between endogenous capital- and labor-saving technical change and population aging. Following an intuition often attributed to Hicks (1932), I ask whether and how population aging aff ects the relative scarcity of factors of...