It is widely believed that Friedrich von Hayek's first encounter with Gunnar Myrdal involved the latter's last-minute contribution, as a replacement for Erik Lindahl, to a Sammelband edited by the former in 1933, and that Hayek was lukewarm towards Myrdal and his ideas from the very beginning....

We argue the change in individuals' Lorenz ordinates-their positions in the Lorenz curve-is informative about economic mobility. Lorenz ordinates combine the ordinal content of ranks with the cardinal content of income differences. In this way, Lorenz mobility is meaningful when there are...

Empirical studies of intergenerational mobility measure it with different statistics-intergenerational elasticities, rank-rank slopes, transition matrices, axiomatic indices-and sometimes reach different conclusions about which places or periods experienced more mobility. I show that a single...