International collaboration is an important contributor to learning, innovation, and competence-building systems. International collaboration in research has been growing rapidly for several decades. The implications of these emerging patterns for developing countries are a matter for debate....

In this paper we estimate the rate of exchange rate pass-through (ERPT) into U.K. import prices using disaggregated data at the SITC-2 and SITC-3 digit levels. We show that the ERPT varies at the disaggregate level. Because of this heterogeneity at the disaggregate level, the estimate of the...

This paper provides new evidence in support of the idea that bouts of optimism and pessimism drive much of US business cycles. In particular, we begin by using sign-restriction based identification schemes to isolate innovations in optimism or pessimism and we document the extent to which such...

We document in the US data: (1) The dominant predictable component of investment-sector TFP is its long-run movements, and a favorable shock to predictable changes in investmentsector TFP induces a broad economic boom that leads actual increases in investment-sector TFP by almost two years, and...

empirical studies.

Despite increasing acknowledgement that social capital is an important determinant of health and overall well-being, empirical evidence regarding the direction and strength of these linkages in the developing world is limited and inconclusive. This paper empirically examines relationships...

The oscillatory characteristics of magnetoconductance for a junction composed of a superconductor and a semiconductor, in which two parallel quantum wave guides are coupled with each other through a potential barrier layer, are studied systematically. To model the imperfectness of the interface,...