They conducted research on the same topic – stabilisation policies for open economies; they worked at the same institution – the IMF; and they came to basically the same conclusions. But they did not join forces to produce the insights that form the basis of our understanding of open-economy macroeconomics to this day.
Again, when I spoke six years ago, the focus was on the pressures in the housing market arising from the rather unusual situation of having the growth rate of the population exceed that in the number of dwellings by a substantial margin (Graph 6).