Table 2.

Net-transfers in study 1

Predictor	Net-transfer
Ingroup (no = 0; yes = 1)	5.115**
	(3.16)
Spatial distance	−0.0000281
	(−0.45)
GDP difference	0.000106***
	(7.62)
Cultural distance (Hofstede)	0.0393*
	(2.19)
Constant	−0.890
	(−0.37)
Observations	7,362
Cluster/subjects	1,227
Adjusted R2	0.039

OLS regression (with cluster corrected SEs) for study 1 predicting net-transfer by ingroup vs. outgroup, spatial distance, difference in GDP, and the cultural distance measured as the Euclidean distance in the five-dimensional model by Hofstede (46) between the sender and receiver countries. The model controls for age and gender effects as well as an instructional manipulation check and indicators for sender nationality (all not reported). t statistics in parentheses. *P < 0.05, **P < 0.01, ***P < 0.001.