问题如下图：请问real short term interest rates受gdp growth和volatility影响的知识点在讲义哪里，有点忘记了这块知识点
选项：
A. 
B. 
C. 
解释：
NO.PZ201710100100000303 如果yielcurve flat的话说明短期利率大于长期利率啊。这样的话country2 是向上倾斜的不就被排除了？
NO.PZ201710100100000303 Country #2. Country #3 B is correct. Reshort-term interest rates are positively relateto both reG growth anthe volatility of reG growth. Country #1 anCountry #2 have the highest reG growth, estimatethe fferenbetween nominG growth anaverage inflation (6.5% – 4.0% = 2.5% an5.0% – 2.5% = 2.5%, respectively), while Country #3 hthe lowest reG growth (3.5% – 2.0% = 1.5%). Looking the volatility of reG growth, Country #2 hhigh reG growth volatility, whereCountry #1 anCountry #3 have low reG growth volatility. Therefore, Country #2 woulmost likely have the highest reshort-term interest rates. 考点 reshort-term interest rates 解析reshort-term interest rates受两个因素影响，一是reG growth，二是volatility of reG growth。 reG growth越高，短期实际利率越高；volatility of reG growth越高，短期实际利率也是越高。 reG growth=nominG growth - inflation rate 因此根据表格数据，三个国家的reG growth分别为2.5%，2.5%，1.5%。Country 3可以排除，因为它的G增长率最低。 再根据volatility of reG growth，只有country 2的波动率是高的。所以选B。从题目中可以算出country #1 和2 的reinterest rate 都是2.5%。 但是我看到country 2 的yielcurve 是upwarslope， 然而country1 的yielcurve是flat。这部是说明相比country 1来讲， country2 的Yst 更低吗？ 所以答案为什么不是country 2
Country #2. Country #3 B is correct. Reshort-term interest rates are positively relateto both reG growth anthe volatility of reG growth. Country #1 anCountry #2 have the highest reG growth, estimatethe fferenbetween nominG growth anaverage inflation (6.5% – 4.0% = 2.5% an5.0% – 2.5% = 2.5%, respectively), while Country #3 hthe lowest reG growth (3.5% – 2.0% = 1.5%). Looking the volatility of reG growth, Country #2 hhigh reG growth volatility, whereCountry #1 anCountry #3 have low reG growth volatility. Therefore, Country #2 woulmost likely have the highest reshort-term interest rates. 考点 reshort-term interest rates 解析reshort-term interest rates受两个因素影响，一是reG growth，二是volatility of reG growth。 reG growth越高，短期实际利率越高；volatility of reG growth越高，短期实际利率也是越高。 reG growth=nominG growth - inflation rate 因此根据表格数据，三个国家的reG growth分别为2.5%，2.5%，1.5%。Country 3可以排除，因为它的G增长率最低。 再根据volatility of reG growth，只有country 2的波动率是高的。所以选请问，本题中country1,2的nominG growth - inflation rate=2.5%，为什么不能理解这个2.5%既包含reinterest的也包含reinterest rate volatility。因为country2的volatility high,所以踢出volatility影响后short term interest rate较country1是偏低的。
g波动和利率成正比？
