This paper models transnational terrorism as a three-way strategic interaction involving a government that faces armed opposition at home, which may spill over in the form of acts of terrorism by the state’s opponents against the government’s external sponsor. The external sponsor also utilizes deterrence against potential terrorists, which only lowers terrorism if terrorists are not intrinsica...

More is known about the characteristics and needs of gifted students with learning disabilities today than in the past, as more educators understand that children with high potential can simultaneously struggle with academic tasks at school. However, many of these students are not identified as requiring services, and if they are, it is for only 1 exceptionality. This absence of knowledge about...

A central feature of innovation systems is that innovation arises from interaction between organizational units. This requires ‘cognitive distance’ that is sufficiently large to yield novelty of combinations, but not too large for mutual understanding. Two problems and solutions in the transfer of knowledge, especially to small firms, are identified and discussed. There is a problem not only of...

The Policy Research Working Paper Series disseminates the findings of work in progress to encourage the exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be used and cited accordingly. The findings, interpretations, and conclusions...

It is widely recognized that small and medium-sized enterprises (SMEs) are some of the core elements involved in increasing levels of employment in most economies, and that these companies can also play a relevant role in the development of new sources of innovation and the creation of competitive advantages in new productive activities or service areas. Only through the strengthening of SMEs c...

This paper analyses, within the new growth theory framework and using panel cointegration techniques, the effect of agricultural international technological spillovers on total factor productivity growth for a sample of 47 countries during the period 1970-1992. The analysis shows that total factor productivity is strongly influenced by domestic as well as foreign public R&D spending in agricult...

While it is generally accepted that industrial action can have a negative impact on a firm’s performance, the direct effects of a strike on the affected firm may be only one component of the total impact resulting from the action. The existence of indirect or ‘spillover’ effects can also have important implications for the economic performance of competing firms. This paper uses a panel dataset...

An employer-employee panel is used to study whether the movement of workers across firms is a channel of unintended diffusion of R&D-generated knowledge. Somewhat surprisingly, hiring workers from others’ R&D labs to one’s own does not seem to be a significant spillover channel. Hiring workers previously in R&D to one’s non-R&D activities, however, boosts both productivity and profitability. Th...

Recent diffusion models cannot explain why the success of technology diffusion depends so critically on developing countries’ human capital levels. This paper examines three main issues. First, we endogenize both appropriate technologies and human capital formation. Second, we refine the human capital accumulation process by introducing uncertainty about worker quality and training efficiency. ...