This monograph provides empirical evidence of the effects of advance notice. Chapter 1 summarizes theoretical arguments for and against plant closing legislation and the evidence of the extent to which advance notice currently is provided to displaced workers in the United States. Chapter 2 presents a summary of prior empirical research on the effects of legislated, privately bargained, and voluntarily provided advance notice of displacement in the United States and Europe. The next four chapters contain new empirical research, which uses the Bureau of Labor Statistics 1984 Survey of Displaced Workers and other data sources. Findings are that having advance notice appears to reduce the probability that a displaced worker will suffer any spell of unemployment, but that it has no effect on the individual's duration of nonemployment if he/she becomes unemployed or on the individual's earnings if he/she becomes reemployed. Contrary to concerns of critics of advance notice, no evidence is found that advance notice leads a firm's most productive workers to quit prior to their planned displacement date. Chapter 7 discusses implications of these findings for public policy toward displaced workers. It addresses inducements that the federal government might use to encourage employers to provide advance notice voluntarily and types of research that should be undertaken to help evaluate the effectiveness of the new federal legislation. (YLB)