1. Measuring Aggregate Human Capital

   • Casey B. Mulligan
   • Xavier Sala-I-Martin

   OriginalPaper Pages: 215 - 252

2. Knowledge as a Set in Idea Space: An Epistemological View on Growth

   • Ola Olsson

   OriginalPaper Pages: 253 - 275

3. The Long-Run Growth Effects of R&D Subsidies

   • Paul S. Segerstrom

   OriginalPaper Pages: 277 - 305