New Releases by Julian Lincoln Simon

The relationship of population to economic growth is studied in cross-sections of LDC countries for 1960-1970, 1950-1960, and 1950-1970, in a multivariate fashion. The non-correlation of population growth with economic growth found by previous investigators in bivariate studies is confirmed here. And population size is found to have no effect. But population density is found to have an unequivocal and strong positive effect upon economic growth.

The purposes of this study were (1) to assess the magnitude of price effects whenever an electric utility firm faces DIRECT competition from another electric utility firm and (2) to observe these price-effects of competition compared with X-efficiency effects on costs.

False bad news about population growth, natural resources, and the environment is published widely in the face of solid contradictory evidence. For example, the world supply of arable land has been increasing, the scarcity of natural resources including food and energy has been decreasing, and basic measures of U.S. environmental quality have positive trends. The aggregate data show no long run negative effect of population growth upon the standard of living, and my models that embody forces omitted in the past -- especially the influence of population size upon productivity increase -- suggest a long run positive effect. There are various possible reasons why the false bad news dominates the true good news. Personal values are certainly a key factor.

A spaced advertising schedule is much more dollar-effective than is a massed (pulsed) schedule, according to this re-analysis of the experimental data developed by Pomerance and Zielske. This finding is at variance with the conclusions drawn by previous writers. The raw Pomerance-Zielske data are published here for the first time; until now only idealized representations of the data have been available, which has been the source of confusion and misunderstanding.