David, T. J. (1973). Archives of Disease in Childhood, 48, 191. Congenital malformations of dermatoglyphs. A classification for congenital malformations of dermatoglyphs is presented, dividing them into ridge aplasia, ridge hypoplasia, ridge dissociation, ridges-off-the-end, and a combination of the last two. The medical and genetic significance of these are considered in the light both of prev...

We reconsider the problem of ordering infinite utility streams. As has been established in earlier contributions, if no representability condition is imposed, there exist strongly Paretian and finitely anonymous orderings of intertemporal utility streams.We examine the possibility of adding suitably formulated versions of classical equity conditions. First, we provide a characterization of all ...

We study how external versus internal innovations promote economic growth through a tractable endogenous growth framework with multiple innovation sizes, multi-product firms, and entry/exit. Firms invest in external R&D to acquire new product lines and in internal R&D to improve their existing product lines. A baseline model derives the theoretical implications of weaker scaling for external R&...

This study explores the impact of social capital on innovation by constructing a more general measure of social capital indicator consisting of generalized and institutional trust, associational activities and civic norms. We test the hypothesis that social capital has a positive impact on innovation at the national level. After controlling for R&D expenditure and human capital there is a posit...

Recent studies of purchasing power parity (PPP) account for the possible presence of unit roots in nominal exchange rates and relative price indices by applying standard unit-root tests to real exchange rates, which are ratios of nominal exchange rates and relative price indices. These studies occasionally find evidence of PPP, but as a whole, the evidence is not definitive. Standard unit-root ...

This paper considers the second-order properties of empirical likelihood (EL) for a parameter defined by moment restrictions, which is the inferential framework of the generalized method of moments. It is shown that the EL defined for this general framework still admits the delicate secondorder property of Bartlett correction. This represents a substantial extension of all the established cases...

This paper presents a Monte Carlo comparison of several versions of heteroscedasticity robust standard errors (HRSEs) to a nonparametric feasible generalized least squares procedure (NPGLS). Results suggest that the NPGLS procedure provides an improvement in efficiency ranging from 3% to 12% or more in reasonable sample sizes using simple functional forms for heteroscedasticity. This results in...