# 微观经济学作业代写Microeconomics代考

## 价格理论Price Theory代写

• 供应和需求Supply and demand
• 市场结构Market structure
• 完全竞争Perfect competition
• 不完全竞争 Imperfect competition

## 微观经济学的历史

Economists commonly consider themselves microeconomists or macroeconomists. The difference between microeconomics and macroeconomics likely was introduced in 1933 by the Norwegian economist Ragnar Frisch, the co-recipient of the first Nobel Memorial Prize in Economic Sciences in 1969.However, Frisch did not actually use the word “microeconomics”, instead drawing distinctions between “micro-dynamic” and “macro-dynamic” analysis in a way similar to how the words “microeconomics” and “macroeconomics” are used today.The first known use of the term “microeconomics” in a published article was from Pieter de Wolff in 1941, who broadened the term “micro-dynamics” into “microeconomics”.

## 微观经济学课后作业代写

Saving or lending decisions are made so that the marginal utility of current consumption is set equal to the discounted expected marginal utility of next period’s consumption. If the yield on assets just offsets the subjective discount rate $(\beta(1+r)=1) \forall t,(10)$ simplifies to $u^{\prime}(c)=E \mu^{\prime}\left(c_{t+1}\right)$.
If we make the assumption that $u$ is quadratic, then $(10)$ becomes
$$c_{t}=E_{t} C_{t+1}$$
In this special case, therefore, households make consumption plans such that expected consumption is constant. 5 Since $A_{\mathrm{T}+1}=0$, the budget constraint (3′) (with $r_{t}$ constant at $r$ ) implies that the discounted value of consumption from any time $t$ to $T$ equals the value of the household’s assets at $t$ plus the discounted value of its income stream from $t$ to $T$. If we combine this result with (11) and let $T$ go to infinity, we arrive at the permanent income hypothesis:
$$c_{t}=\frac{r}{1+r}\left(A_{t}+E_{t} \sum_{\mathrm{T}=t}^{\infty}(1+r)^{-(\mathrm{\tau}-t)^{\prime}} y_{\mathrm{T}}\right)$$