Professor Langer's current research focuses on how consumers make decisions that affect the environment. In particular, she is currently studying how consumers make decisions over which vehicles to drive, how those preferences may form endogenously within family networks, and how consumers choose when and where to purchase gasoline. These questions have substantial implications for the design of energy policy, including the optimal level of gasoline taxes or corporate average fuel economy (CAFE) standards and potential incentives for alternative fuel vehicle adoption. Professor Langer is also working on the effect of consumer demographics and demographic group preferences on vehicle pricing and has previously worked on the effect of congestion tolling on urban land use.
"Automakers' Short-Run Responses to Changing Gasoline Prices," (with Nathan Miller) accepted at the Review of Economics and Statistics
"Toward A Comprehensive Assessment of Road Pricing Accounting for Land Use," (with Clifford Winston),2008, Brookings-Wharton papers on Urban Affairs, pp.127-75.
"The Effect of Government Highway Spending on Road Users' Congestion Costs," (with Clifford Winston), 2006, Journal of Urban Economics 60(3), pp.463-83.