3. According to the findings of the GfK Consumer Climate study, the Consumer Confidence Index(CCI) for Germany was 8.3 points in February 2014, which hit the highest level in seven years. 92 a. Discuss the impact of the increase in the CCI on Germany's autonomous aggregate expenditure. b. Why do you think the impact of the increase in the CCI might be greater on Germany's national income than on Germany's autonomous aggre- gate expenditure