This paper studies whether skilled migrants contribute to the host country's "productive efficiency" (Farrell, 1957) using input-output and immigration sectoral data for seven industries in twelve countries during the period 1999-2001. We find that skilled migrants contribute positively to a...

This paper studies whether skilled migrants contribute to the host country's 'productive efficiency' (Farrell, 1957) using input-output and immigration sectoral data for seven industries in twelve countries during the period 1999-2001. We find that skilled migrants contribute positively to a...

In this paper, we measure and analyse profit efficiency and productivity of Vietnamese banks using a newly developed index approach which is based on the directional distance function. Our findings indicate that the average bank operates quite far below the frontier of the best-practice bank,...