The final version of the paper is due the first day of Reading Period, Thursday, April 26, at 5pm. You must turn in a hard copy of the paper and arrange to hand over all data and code (either by email or by Dropbox). You must also follow standard academic practice and create a permanent replication archive by uploading all your data and code to the Gov2001 Dataverse.
If you need an extension with the replication paper, you do not need to ask permission: We will accept papers until Monday, April 30, at 5pm, but since you will have had more time, papers turned in after the April 26 deadline will be graded according to proportionately higher standards. The number of incompletes we plan to give is governed by a Poisson distribution with $\lambda=0.01$, so please plan accordingly.