Explaining Changes in the Population of Voluntary Organizations: The Roles of Aggregate and Individual Level Data
Abstract
This article demonstrates the simultaneous need for time-series and mul tilevel data in order to understand organizational transformation. It is based on data from an extensive research project on voluntary organiza tions that encompassed the total registration of nongovernmental organi zations in a Norwegian province at three different times. Theoretical and methodological problems concerning organizational theory in general, and population ecology in particular, are identified.