The behavioral mechanisms of voluntary cooperation across culturally diverse societies : evidence from the US, the UK, Morocco, and Turkey / Till O. Weber (Newcastle University), Jonathan F. Schulz (George Mason University), Benjamin Beranek (Missouri State University), Fatima Lambarraa-Lehnhardt (ZALF), Simon Gächter (University of Nottingham, IZA and CESifo) ; IZA Institute of Labor Economics
