Sixty years ago, Milton Friedman questioned the usefulness of the optimal control approach because of policymakers’ imperfect knowledge of the economy and favored instead a simple rule approach to monetary policy (1947, 1948). These are still live issues, despite the development of powerful techniques ...

Chile was one of the world’s fastest-growing economies in the 1990s. Its growth rate of 6.8 percent per year from 1990 to 2000 (inclusive) was the seventh highest in the world, and by far the highest in Latin America. Poverty was halved, and while this was overwhelmingly due to growth rather than a ...