unemployment and their relevance to the actual rate of unemployment. 4)Student should be aware that there may be a lag between gains in GDP and improvements in the unemployment rates as the economy recovers from a recession 5)Students should be able to distinguish between frictional and cyclical unemployment 6)Students should be able to evaluate the relative costs of unemployment and inflation. 7)Students should be able to distinguish between the effects of perfectly anticipated and imperfectly anticipated inflation. 8)Students should be aware that a positive rate of inflation may reduce wage rigidity. (三)思考与实践 1.Suppose that the natural rate of unemployment is5%for adults and 10%for teenagers.If teenagers make up 40%of the labor force(and adults the other 60%), what is the natural rate for the labor force as a whole? 2.If the number of teenagers increased to 60%(and the number of adults fell to 40%),how would the overall natural rate change? Would the level of full-employment (potential)output be higher or lower than in the previous case? 3.Suppose that in atypical month,4 people out of every 100 leave their jobs.If 2 of these people remain out of work for I month.I remains out of work for 3 months. and the last remains out of work (but in the labor force)for 1 year,what is the average duration of unemployment?What is the unemployment rate?(Hint for calculating the unemployment rate:You need to figure out how many people,out of each 100.will be unemploved in a typical month. (四)教学方法与手段 课堂讲授，多媒体教学，课堂讨论或分组讨论。 第八章POLICY PREVIEW (一)目的与要求 This chapter provides a simple overview of policymaking at the central banks based on"Taylor Rule'. (二)教学内容 14 14 unemployment and their relevance to the actual rate of unemployment. 4)Student should be aware that there may be a lag between gains in GDP and improvements in the unemployment rates as the economy recovers from a recession. 5)Students should be able to distinguish between frictional and cyclical unemployment. 6)Students should be able to evaluate the relative costs of unemployment and inflation. 7)Students should be able to distinguish between the effects of perfectly anticipated and imperfectly anticipated inflation. 8)Students should be aware that a positive rate of inflation may reduce wage rigidity. （三） 思考与实践 1. Suppose that the natural rate of unemployment is 5% for adults and 10% for teenagers. If teenagers make up 40% of the labor force (and adults the other 60%), what is the natural rate for the labor force as a whole? 2. If the number of teenagers increased to 60% (and the number of adults fell to 40%), how would the overall natural rate change? Would the level of full-employment (potential) output be higher or lower than in the previous case? 3. Suppose that in a typical month, 4 people out of every 100 leave their jobs. If 2 of these people remain out of work for 1 month, 1 remains out of work for 3 months, and the last remains out of work (but in the labor force) for 1 year, what is the average duration of unemployment? What is the unemployment rate? (Hint for calculating the unemployment rate: You need to figure out how many people, out of each 100, will be unemployed in a typical month.) （四） 教学方法与手段 课堂讲授，多媒体教学，课堂讨论或分组讨论。 第八章 POLICY PREVIEW （一） 目的与要求 This chapter provides a simple overview of policymaking at the central banks based on ‘Taylor Rule’. （二） 教学内容