• 1 Introduction: product variety as a potential measure of technology
  • 2 A testable hypothesis on the variety of available capital goods
  • 2.1 Theoretical framework
  • 2.2 Conditional convergence of states of technology
  • 3 Measuring available product variety and some stylised facts
  • 4 Empirical assessment
  • 4.1 Assessing technical change through product variety
  • 4.2. Data and specification
  • 4.3 Estimation and discussion of the results
  • 5 Conclusions