1. LEDs, Energy Efficiency and Consumption Wagner, Gernot; Gillingham, Kenneth 2014 Essays Light emitting diodesEnergy consumptionEconomicsClimatic changes
2. Pluses and Minuses of a Carbon Tax Keohane, Nathaniel O.; Wagner, Gernot 2015 Essays Climatic changes--Government policyEmissions tradingClimatic changesEconomicsPublic policy (Law)