"Elasticities of Substitution and Complementarity" to be published in Journal of Productivity Analysis

My paper Elasticities of Substitution and Complementarity has been accepted by the Journal of Productivity Analysis. The paper surveys the various definitions of the "elasticity of substitution" and puts them into a framework that explains their relationships and purposes. It includes the new definition of Hicks Elasticity of Substitution based on the input distance function as well as