A renewable portfolio standard (“RPS”) has been adopted in some form by 38 states and the District of Columbia. These laudable policy initiatives have now outlived their usefulness. We propose a transition to an innovative carbon-based standard that will better serve the objective of...

"Standard" environmental economics considers emissions trading to be the most effective and efficient policy instrument to meet the emission target. However, a popular view is that tradeable permits should be part of a policy portfolio, including other instruments, to reach this goal. Support...

A dynamic microeconomic model is presented that establishes the price and unit sales evolution of heterogeneous goods consisting of successive homogenous product generations. It suggests that for a fast growing supply the mean price of the generations are governed by a logistic decline towards a...