The Panel Study of Entrepreneurial Dynamics (PSED) research program was designed to longitudinally examine the startup process with multi-year cohort tracking, so as to enhance the scientific understanding of how individuals start businesses. The date of entry into firm creation, eighteen start-up activities, and occurrence of major outcomes--initial profits or disengagement--have been harmonized for five PSED cohorts (Australia, China, Sweden, United States PSED I [ICPSR 37203] , and United States PSED II [ICPSR 37202] ). This unique resource is based on 3,910 nascent ventures for which 2,541 have outcome data. These cohorts are representative samples of business creation in their representative countries. The potential for assessing major processes associated with firm creation and the impact of different national contexts is enhanced by this data set.
