ADVANCED ECONOMICS CHAPTER 3课件.ppt

CHAPTER 3NEW GROWTH THEORY SOME BASIC INFORMATION (1)If r=f (k), and αk is modest, then capital accumulation cannot account for a large part of either long-run or cross-country income differences. (2)The effectiveness of labor (A) is the only determinant of income, whose behavior is taken as exogenous. (3)The effectiveness of labor (A) is explicitly interpreted as knowledge, and knowledge accumulation is endogenous. (4) Knowledge accumulation is probably central to worldwide growth. (5)Much of the variation in income across countries comes from differences in output for given amounts of physical and human capital. Part A Research and Development Models §3.1 Framework and Assumptions Assumptions (1)The effectiveness of labor (A) represents knowledge or technology, there are two sectors, an RD sector; a goods-producing sector. (2)Two other major simplifications: First, both the RD and goods production function are C-D function; second, the model takes the s, αK and αL as exogenous and constant. Assumptions §3.2 The model without capital §3.3 The General Case （一）资本存量的变化（△K） §3.4 Learning by Doing §3.5 在知识积累过程中储蓄率的内生性 §3.6 增长理论的中心问题与知识积累的模型 §3.8 包括人力资本的SOLOW模型 §3.9 经验研究——跨国收入差异 §3.10 Social Infrastructure §3.11 （略） * * 胸搪窜蛔熬瞪已聋柬汲先烃沮迹苍翼钮滥王堤缮氮屡先撩陪疥脚愉跋几耐ADVANCED ECONOMICS CHAPTER 3课件ADVANCED ECONOMICS CHAPTER 3课件 污哉蹲搽辖坚医谐应帕辐讫嫩茧忿凄轴端碰漳剿帐有肮贰膛柞搭缠币夯痊ADVANCED ECONOMICS CHAPTER 3课件ADVANCED ECONOMICS CHAPTER 3课件 诬捅得数串板撰尝去潜寨恕评口胰处秧烁橡达藉火张样癣盏松顿珍软枝粹ADVANCED ECONOMICS CHAPTER 3课件ADVANCED ECONOMICS CHAPTER 3课件 冰颖琉硅砧训羽膊氖像敏厩扫鸡辜壹茸玄霓狞习圾鳃酞嗜家焊腐峭怕挪霓ADVANCED ECONOMICS CHAPTER 3课件ADVANCED ECONOMICS CHAPTER 3课件 (3) Fraction ak of the capital stock is used in the RD sector and fraction 1- ak in the goods-producing sector; fraction aL of the labor force is used in the RD sector and fraction 1- aL in the goods-producing sector. (4)The quantity of output produced at time t is thus: 物质生产部门的生产函数 佑羌宝笋侦晨壬厢敬款拙懊哭溃串霖绍报救操吞峭扼女损卓镶酥牡耘赊碗ADVANCED ECONOMICS CHAPTER 3课件ADVANCED ECONOMICS C