A study examined Work Incentive (WIN) Demonstration programs in four states. The following programs were reviewed: Employment and Training Choices (in Massachusetts), Michigan Opportunity and Skills Training, the Employment Services Program (in Texas), and JOBS (in Oregon). A strict, across-the-board analysis of the programs was difficult because of differences in the way different services were defined in the four programs and because of many gaps and discrepancies in the information available about the individual programs. The Massachusetts and Michigan programs were the most complex, offering multiple services and providers, in contrast to the Oregon and Texas programs, each of which provides one primary service. Massachusetts relied on federal funds to finance only 35 percent of its program, whereas Michigan's was about half federally funded and the Texas and Oregon programs each used a little more than 70 percent federal funds. Comparable percentages of adult Aid to Families with Dependent Children clients were counted as employment program participants in each of the four states. The Texas and Oregon programs emphasized job search, whereas the Michigan and Massachusetts programs stressed education and training activities. All four programs use some services provided by nonwelfare agencies, with Massachusetts making the most use of outside services (usually arranged with performance-based contracts) and Oregon using them the least. Massachusetts was the only state to place a major emphasis on child care (funding child care for clients before and after they find a job). Program staff in the other states frequently urge participants to find care on their own before starting the program. Placement rates were available only for Massachusetts and Michigan (38 and 37 percent respectively), with Massachusetts program completers earning higher average wages than completers of the other three programs. (MN)