Economic Analysis of Product Innovation: The Case of CT Scanners

Abstract

Introduction The Measurement of Innovations The Magnitude of Innovations A Method for Measuring Innovations The Formal Derivation of the Surplus Function The Construction of Quality-Adjusted Price Indices on the Basis of DELTAW ADELTAW-Based Indices versus Hedonic Prices The Decomposition of W( ) and the Taste for Horizontal Variety The Case of CT Scanners The Ongoing Revolution in Diagnostic Technologies The Story of CT Scanners Diffusion and Regulation Technical Aspects Data and Sources The Impact of Regulation on the Diffusion of CT Scanners Determinants of the Adoption Time of CT for Individual Hospitals The Assessment of Image Quality Data on CT Scanners The Choice of CT Scanners and the Dynamics of Preferences Specification issues Estimating the Hedonic Price Functions The Estimation of the MNL Head versus Body Scanners The Nested Multinomial Logit Model Changes in Preferences and Inducement Mechanisms Derivation of Cross Elasticities in the Nested MNL Surveys of Users of CT Scanners Gains from Innovation in CT Preliminary Issues in Computing the Gains Incremental Gains from Innovation Total Gains and the Interdependency of Innovation and Dffusion R&D Expenditures and Social Returns The Time Profile of Benefits and Costs The Construction of Real Price Indices Sources of Data on R&D Expenditures on CT Patents as Indicators of Innovation The Value of Patents Using Patent Data Patents in Computed Tomography The Statistical Evidence The Patents-R&D-Patents Connection and Other Extensions The Usefulness of Patent Data Online Search and Retrieval of Patent Data from Large Databases A Statistical Analysis of Truncation and Age Effects References Index

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