Not at all, when I tried to use the link the page wasn't found. But examining the sprawl currently taking place where I live, I don't think the problem is regulatory - the issue is cost. Not the cost of development, but the purchase cost that excludes potential homebuyers.

Why develop property when labor and materials are so expensive that no one can afford to buy?

I agree that the issue is cost. But the paper takes pains to quantify the roles of materials, labor, and regulation—and finds it's mostly the last.