Policy and Economic Performance in Divided Korea during the Cold War Era: 1945-91 by Nicholas Eberstadt. And The Invention of Enterprise, edited by David S. Landes, Joel Mokyr, and William J. Baumol.
I have only skimmed them so far. If your reaction to From Poverty to Prosperity was "This is lightweight material. I was looking for something on the same topic, but much fuller and more scholarly," then these books are self-recommending.