25 January 2017
24 January 2017
New from Dani Rodrik:
"how strong a preference must we have for our fellow citizens relative to foreigners to justify the existing level of barriers on international labor mobility? More concretely, let φ stand for the weight in our social welfare function on the utility of domestic citizens relative to the utility of foreigners.
When φ=1, we are perfect cosmopolitans and we see no difference between a citizen and a foreigner. When φ→∞, foreigners might starve to death and we wouldn’t care.
For the policy in question [allowing the movement of 60 million workers from poor to rich nations] to reduce social welfare in the rich countries, it turns out that φ must be larger than 4.5. Is a welfare premium of 450 percent for fellow citizens excessive? Is it reasonable to think that a foreigner is worth less than 22 percent a citizen?"
17 January 2017
10 January 2017
When I was studying for my undergraduate degree, probably the most enjoyable book I read I think I happened to stumble across in the library (back in the day when you had to actually go to the library to find book chapters and physical copies of journals to read), called ‘Conversations with Leading Economists’. The conversational style, discussing in conversational language how ideas came about and how theorists interacted with each others' ideas and with data, was an amazing breath of fresh air, and a world away from the weirdness of the textbooks which often appear to pass down strange and seemingly grossly unrealistic theories and models of the world as if they were some kind of natural law. The list of interviewees includes Milton Friedman, Robert Lucas, Gregory Mankiw, Franco Modigliani, Paul Romer, Robert Solow.
That conversational style can probably be slightly more commonly found these days in the post-blogging social media world, but there are still plenty of important thinkers who don’t very frequently blog or write op-eds (they’re busy being important thinkers), so Timothy Ogden has provided the wonderful service of writing up a series of interviews with some of the leading voices in both academia and policy on the use of randomized evaluations and field experiments in development economics.