I'll comment on the specifics of some of these articles over the next week or so, but here's the table of contents for the issue. Again, all of these articles are available on-line at the JEP website.
Symposium: Field Experiments
“Mechanism Experiments and Policy Evaluations,” by Jens Ludwig, Jeffrey R. Kling and Sendhil Mullainathan
“The Role of Theory in Field Experiments,” by David Card, Stefano DellaVigna and Ulrike Malmendier
“Field Experiments with Firms,” by Oriana Bandiera, Iwan Barankay and Imran Rasul
Symposium: Emigration
“Economics and Emigration: Trillion-Dollar Bills on the Sidewalk?” by Michael A. Clemens
“Eight Questions about Brain Drain,” by John Gibson and David McKenzie
“ Migrant Remittances,” by Dean Yang
Other Articles
“Killing Me Softly: The Fetal Origins Hypothesis,” by Douglas Almond and Janet Currie
“Internal Migration in the United States,” by Raven Molloy, Christopher L. Smith and Abigail Wozniak
“Esther Duflo: 2010 John Bates Clark Medalist,” by Christopher Udry
“Retrospectives: Hume on Money, Commerce, and the Science of Economics,” by Margaret Schabas and Carl Wennerlind
“Recommendations for Further Reading,” by Timothy Taylor