Ermisch J, Gambetta D, Laurie H, Siedler T, Uhrig SCN1 October 2009Journal article Journal:Journal of the Royal Statistical Society Series A (Statistics in Society)Volume:172Issue:4, Oxford University Press (OUP), pp.749 - 769No abstract availableKeywords:38 Economics , 3801 Applied Economics , 3803 Economic Theory DOI10.1111/j.1467-985x.2009.00591.x