Bento, Antonio; Kaffine, Daniel; Roth, Kevin; … - In: American Economic Journal: Economic Policy 6 (2014) 3, pp. 1-29
In transportation systems with unpriced congestion, allowing single-occupant low-emission vehicles in high-occupancy vehicle (HOV) lanes to encourage their adoption exacerbates congestion costs for carpoolers. The resulting welfare effects of the policy are negative, with environmental benefits...