CAMBRIDGE – There was a time when we economists steered clear of politics. We viewed our job as describing how market economies work, when they fail, and how well-designed policies can enhance efficiency. We analyzed trade-offs between competing objectives (say, equity versus efficiency), and prescribed policies to meet desired economic outcomes, including redistribution. It was up to politicians to take our advice (or not), and to bureaucrats to implement it.
Then some of us became more ambitious. Frustrated by the reality that much of our advice went unheeded (so many free-market solutions still waiting to be taken up!), we turned our analytical toolkit on the behavior of politicians and bureaucrats themselves. We began to examine political behavior using the same conceptual framework that we use for consumer and producer decisions in a market economy. Politicians became income-maximizing suppliers of policy favors; citizens became rent-seeking lobbies and special interests; and political systems became marketplaces in which votes and political influence are traded for economic benefits.