Alesina and Giuliano illustrate that strong family ties lead to lower geographical mobility and reduced labour force participation of young and female individuals. We extend their analysis by arguing that the effect of strong family ties on economic outcomes depends on a country's level of economic and institutional development. This cross-country heterogeneity arises because strong family ties not only foster traditional family values (which have disruptive effects on economic outcomes), but also provide economically valuable social networks - especially in societies characterised by weak institutions and limited market access. Empirical evidence using the European and World Value Surveys (EVS/WVS) are supportive of our theoretical argument.