Previous studies investigating altruistic punishment have confounded the effects of two independent variables: information transmission (or breach of privacy) and personal identification (or breach of anonymity). Here we report findings from a brief study in which participants were asked to respond to a social norm violation (i. e. https://safeersappliancers.shop/product-category/zanussi-zof35601xk-built-under-double-oven-in-stainless-steel/