Trade and geography.

• Position: Conferences

An NBER Conference, "Trade and Geography," took place in Cambridge on March 30. International Trade and Investment Program Director Stephen J. Redding and Research Associate Esteban Rossi-Hansberg, both of Princeton University, organized the meeting. These researchers' papers were presented and discussed:

* Emi Nakamura and Jon Steinsson, Columbia University and NBER, and Josef Sigurdsson, Stockholm University, "The Gift of Moving: Intergenerational Consequences of a Mobility Shock" (NBER Working Paper No. 22392)

* Pablo Fajgelbaum, University of California, Los Angeles, and NBER, and Edouard Schaal, CREI (Barcelona), "Optimal Transport Networks in Spatial Equilibrium" (NBER Working Paper No. 23200)

* Enghin Atalay, University of Wisconsin-Madison; Mary Jialin Li, University of Chicago; and Ali Hortacsu and Chad Syverson, University of Chicago and NBER, "How Wide Is the Firm Border?"

* Melanie Morten, Stanford University and NBER, and Jaqueline Oliveira, Rhodes College, "The Effects of Roads...