@mtaylor_nz @MLiebreich @skhoreibi @bruneski @makower @Revkin @arikring @MikeHudema In 09-12; were policy effects greater than panel costs?

@mtaylor_nz @MLiebreich @skhoreibi @bruneski @makower @Revkin @arikring @MikeHudema In 09-12; were policy effects greater than panel costs?