We estimate the short-run and life-cycle effects of unplanned children on unwed mothers by comparing unmarried women who first gave birth to twins with unwed mothers who bore singletons. We find large short-term effects of unplanned births on labor-force participation, poverty, and welfare recipiency among unwed mothers, but not among married mothers. Although most of the adverse economic effects of unplanned motherhood dissipate over time for whites, there are larger and more persistent negative effects on black unwed mothers.

This paper analyzes the relationship between changes in unionization and firm growth. Average growth is significantly lower in manufacturing firms that experience successful union elections, but these strong "effects" are largely illusory. We find no evidence of a significant relationship between unionization and firm growth, despite a strong cyclical pattern in election activity. Our results suggest that the significant negative effect of organizing activity on a firm's market value is not accompanied by any growth changes. We therefore cannot reject the hypothesis that the equity losses from union election activity represent a simple transfer of wealth from shareholders to workers.

This paper analyzes the relationship between changes in unionization and firm growth. Average growth is significantly low er in manufacturing firms that experience successful union elections bu t these strong "effects" are largely illusory. The authors find no evidence of a significant relationship between unionization and firm growth, despite a strong cyclical pattern in election activity. Thei r results suggest that the significant negative effect of organizing activity on a firm's market value is not accompanied by any growth changes. The authors, therefore, cannot reject the hypothesis that t he equity losses from union election activity represent a simple transf er of wealth from shareholders to workers.