The recent US economic scenario has motivated a series of heterodox papers concerned with household indebtedness and consumption. Though discussing autonomous consumption, most of the theoretical papers rely on private investment-led growth models. An alternative approach is the so-called Sraffian supermultipler model, which treats long-run investment as induced, allowing for the possibility that other final demand components – including consumption – may lead long-run growth. We suggest that the dialogue between these approaches is not only possible but may prove to be quite fruitful.The recent US economic scenario has motivated a series of heterodox papers concerned with household indebtedness and consumption. Though discussing autonomous consumption, most of the theoretical papers rely on private investment-led growth models. An alternative approach is the so-called Sraffian supermultipler model, which treats long-run investment as induced, allowing for the possibility that other final demand components – including consumption – may lead long-run growth. We suggest that the dialogue between these approaches is not only possible but may prove to be quite fruitful.