Lichty, Richard WJacobson, JeanKukanich, SusanLehnhoff, JamesRhyu, JeewonSmjalovic, ArnelaWittrock, TianaFoslien, Kirsten2023-11-222023-11-222000-02https://hdl.handle.net/11299/258449This is part 4 of a 4(?)-part series; the "Related to" links below go to Reports 1, 2, and 3. The original October 1999 version of this report was uploaded 11/22/2023; a more recent February 2000 version that includes a Data Appendix at the end was uploaded 7/23/2024.enBureau of Business and Economic ResearchUniversity of Minnesota DuluthWorking Paper