Question

请高人指点并解析一下，万分感谢，三道宏观经济学习题

1. If the capital stock increases faster than employment, then we would expect( )
A. both output and labor productivity to rise
B. output to rise but labor productivity to fall
C. both output and labor productivity to fall
D. output to fall but labor productivity to rise
2. A high proportion of the population under the age of 15 undermines economic growth because( )
A. the young require more infrastructure than older people
B. the young require more capital goods than older people
C. they present such a huge increase in human capital
D. the young consume but they do not produce
3. A singular important link between politics and economics in countries that are attempting to increase their economic growth rates is that( )
A. democracies are more productive than non-democracies
B. democracies must constantly make difficult budgetary choices
C. political instability is incompatible with long-term private investment
D. conservative governments tend to focus development on military industries
求解析啊求解析~万分感谢~

Answer 1

1A,资本存量增长超过就业人数，意味着人均资本的增长，人均资本的增长意味着劳动产出的增长，而总产出肯定是增加的。
2C，年轻人越多，意味着将来会有更多人工作。
3C，政府不稳地，投资没有保障，人民会转移资产到国外。
这是很口语化的题目阿？一点也不专业。