Pissarides, Christopher Antoniou, 1948–, British-Cypriot economist, b. Nicosia, Cyprus, Ph.D. London School of Economics, 1973. He has been a professor at the London School of Economics since 1976. Pissarides examined the labor market and helped to develope matching theory, which is used to study employment and unemployment. Along with Peter Diamond and Dale Mortensen, he was awarded the Nobel Memorial Prize in Economic Sciences in 2010 for their individual and joint contributions to search and matching theory and the Diamond-Mortensen-Pissarides model, which is used to study unemployment and other aspects of the labor market. Pissarides wrote Equilibrium Unemployment Theory (2d ed., 2000), a standard reference work.