Future<strong> </strong>scenarios provide challenging, plausible and relevant stories about how the future could unfold. Urban Futures (UF) research has identified a substantial set (450) of seemingly disparate scenarios published over the period 1997–2011 and within this research, a sub-set of 160 scenarios...

This article presents a general equilibrium model in which middlemen emerge to facilitate trade in an environment of idiosyncratic tastes and heterogeneous goods. The gains to the traders can be measured along three dimensions: the rate of production, the time-preference losses generated by the...