Template-type: ReDif-Paper 1.0 Author-Name: Wang L. Author-Name: Coccia M. Author-workplace-name: UNU-MERIT Title: Evolutionary convergence of the patterns of international research collaborations across scientific fields Abstract: Frame and Carpenter 1979 analysed the pattern of international research collaboration among scientific fields in 1970s. Starting from this pioneering work, this paper investigates international collaborations over 1997-2012 and compares the critical results with earlier studies to detect the evolution of collaboration patterns in different scientific fields. Empirical analysis supports two vital findings, given by a a relatively stable structure of international research collaborations over time across different scientific fields; b a convergent process of collaboration patterns between theoretical and applied research fields. One important deter-minant of the latter result might be due to the increasing interdisciplinary nature of research fields that supports the convergence between basic and applied sciences. Keywords: Economic History, U.S., Canada, Europe, Economic Development, Innovation and Invention, Technological Change Classification-JEL: O31, O39, O10, N00, N31, N33 Series: UNU-MERIT Working Papers Creation-Date: 2015 Number: 2015-011 File-URL: https://unu-merit.nl/publications/wppdf/2015/wp2015-011.pdf File-Format: application/pdf File-Size: 454026 Handle: RePEc:unm:unumer:2015011