Scholars of Roman archaeology, epigraphy, and history are increasingly discussing urban maintenance and waste disposal, but the impact of these phenomena on the archaeological record remains largely understudied. The presence of waste disposal systems in Roman towns entails that a large part of what was discarded was periodically removed from the urban area. This in turn implies that whole historical periods may be underrepresented by the finds recovered within the city. This aspect can be apprehended through the post-excavation analysis of the House of Titus Macer in Aquileia, whose mid-imperial phase, during which the domus was inhabited and regularly maintained, is poorly represented. What has been observed suggests that great caution must be exercised when using data collected within urban sites to draw conclusions on ancient economic trends. To tackle this problem, our research agendas should target large extra moenia dumps more frequently.

Self-control, so important in the theory and practice of psychology, has usually been understood introspectively. This target article adopts a behavioral view of the self (as an abstract class of behavioral actions) and of self-control (as an abstract behavioral pattern dominating a particular act) according to which the development of self-control is a molar/molecular conflict in the development of behavioral patterns. This subsumes the more typical view of self-control as a now/later conflict in which an act of self-control is a choice of a larger but later reinforcer over a smaller but sooner reinforcer. If at some future time the smaller-sooner reinforcer will be more valuable than the larger-later reinforcer, self-control may be achieved through a commitment to the largerlater reinforcer prior to that point. According to some, there is a progressive internalization of commitment in the development of self-control. This presents theoretical and empirical problems. In two experiments – one with pigeons choosing between smallersooner and larger-later reinforcers, the other with adult humans choosing between short-term particular and long-term abstract reinforcers – temporal patterning of choices increased self-control.