Equipment and non-equipment private investment: a generalized Solow model

The study is an empirical attempt to shed light on which categories of private fixed investment could be relied on to provide the greatest stimulus to economic growth. Panel data, comprising 5-year periodic data over the period 1965-90 pooled across 55 countries, are employed in estimating the model through the fixed-effect technique. In addition to human capital investment ratio, five categories of private fixed investment ratios are tested for. Findings suggest that not all types of investments are conducive to growth.