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Mostly summarized from Gregory Mankiw’s Principles of Economics, 5th Ed. PART 9 The Real Economy in the Long Run Chapter 28 of 36 Unemployment Section 9 of 21 … Here we discuss four explanations for long-run unemployment -1- frictional unemployment -2- minimum wage laws -3 - unions and collective bargaining -4- efficiency wages … -1- Frictional Unemployment This is unemployment that results because it takes time for workers to search for and obtain jobs. Job search is the process of matching workers and appropriate jobs and is a reason there is always some unemployment. In the job market · workers have different tastes and skills · jobs have different attributes · information about job candidates and job opportunities is disseminated slowly ... Frictional unemployment often results from changes in demand for labor among firms. When consumers decide they prefer Apple to Dell computers Dell lays off workers and Apple hires workers. Former Dell workers must search for new jobs. Appl...