 But, of course, we cannot, on an a priori basis, treat personal and collective responsibility as mutually exclusive. For, there is always the possibility of bringing them together and doing so in ways that enhance both. Robert Goodin (Goodin 1998) suggests what such an integrated system of responsibility might look like in the context of a welfare state. List and Pettit underscore how individual and collective responsibility might co-exist on a more general level. (List and Pettit 2011, pp. 121–122)