Study	Outcome	N	Nt	Nc	Unit of analysis	TREATeff	Effect size	Variance	Lower bound	Upper bound
Demurger2012 China SLCP	Rural labour migration decision—probability of migration	5,068	3,072	1,996	Plot/Village	ATE	0.3397	0.0008	0.283	0.3964
Uchida2007 China SLCP	Migration status (number of adult migrants in household)	339	253	86	Plot/Village	ATT	0.0722	0.0156	−0.172	0.3169
Arriagada2015 Costa Rica PSA	Change in absentee status since 1996, Off‐farm in 1996 ‐> On‐farm in 2005 (dummy variable: 1 indicates living off‐farm in 1996 and living on‐farm in 2005) Residence 1	80	40	40	Plot/Village	ATT	−0.261	0.0504	−0.7007	0.1796
Arriagada2015 Costa Rica PSA	Change in absentee status since 1996, Off‐farm in 1996 ‐> On‐farm in 2005 (dummy variable: 1 indicates living off‐farm in 1996 and living on‐farm in 2005) Residence 2	80	40	40	Plot/Village	ATT	−0.256	0.0504	−0.6956	0.1845
Arriagada2015 Costa Rica PSA	Change in absentee status since 1996, Off‐farm in 1996 ‐> On‐farm in 2005 (dummy variable: 1 indicates living off‐farm in 1996 and living on‐farm in 2005) Residence 3	80	40	40	Plot/Village	ATT	0.276	0.0505	−0.1643	0.7164
Arriagada2015 Costa Rica PSA	Change in absentee status since 1996, Off‐farm in 1996 ‐> On‐farm in 2005 (dummy variable: 1 indicates living off‐farm in 1996 and living on‐farm in 2005) Residence 4	80	40	40	Plot/Village	ATT	0.2214	0.0503	−0.2182	0.6611