The Black-Scholes-Merton option valuation method involves deriving and solving a partial differential equation (PDE). But this method can generate multiple values for an option. We provide new solutions for the Cox-Ingersoll-Ross (CIR) term structure model, the constant elasticity of variance...

Urbanization is one of the major demographic and economic trends occurring in developing countries, with important consequences for development, energy use, and well being. Yet it is only beginning to be explicitly incorporated in long-term scenario analyses of energy and emissions. We assess...

The authors estimate the effects of U.S. manufacturers' use of staffing services on measured employment and labor productivity between 1989 and 2009. Using time series data constructed from the Occupational Employment Statistics program, they document the dramatic increase in manufacturers' use...