After demonstrating that any nontrivial technique for seasonally adjusting time series inevitably leads to certain distortions of the data, an effort is made to provide explicit motivation for the process of seasonal adjustment for purposes of appraising current economic conditions. Inherent...

The primary purpose of this paper is to present a model of technical progress and economic growth from which one can derive a Golden Rule of Research quite analogous to the Golden Rule of Accumulation. The secondary purpose is to discuss various models of technical progress. That there might...