宏觀經(jīng)濟(jì)學(xué)是經(jīng)濟(jì)學(xué)方向的重要課程之一,很多同學(xué)經(jīng)常在作業(yè)中遇到一些問(wèn)題。下面我們分享一些比較典型的作業(yè)題目和答案,對(duì)于這方面內(nèi)容掌握不是特別到位的同學(xué),可以利用下面這些題目多加練習(xí)。
一、經(jīng)典例題
1.The demand curve and supply curve for one-year discount bonds with a face value of $1,000 are represented by the following equations:
Bd : Price = -0.8 * Quantity + 1100
Bs : Price = Quantity + 680
a. What is the expected equilibrium price and quantity
of bonds in this market?
b. Given your answer to part (a), what is the expected
interest rate in this market?
答案解析:
P=?0.8Q+1100,
P=Q+680;
-0.8Q+1100=Q+680,?0.8Q+1100=Q+680,
1.8Q=420,1.8Q=420,
Q=233,Q=233,
P=913.P=913.
2.From statistical studies, we know that for 1981 the supply curve for wheat was approximately as follows: Supply: QS = 1800 + 240P Where price is measured in dollars per bushel and quantities are in millions of bushels per year. These studies also indicate that in 1981 the demand curve for wheat was Demand: QD = 3550 – 266P a. Find the market clearing price and equilibrium quantity of wheat for the year1981. b. What do we mean by surplus and deficit? Show us your answer graphically using the above demand and supply functions c. Show the effects of changes in demand and supply in equilibrium price and equilibrium quantity
答案解析:
Qs=1800+240P,
Qd=3550-266P,
Qs=Qd,
1800+240P=3550-266P,
506P=1750,
P=3.46,
Qs=Qd=2630.
二、宏觀經(jīng)濟(jì)學(xué)作業(yè)難點(diǎn)分析
1.作業(yè)涉及很多理論
這是很多學(xué)生剛開(kāi)始接觸經(jīng)濟(jì)學(xué)遇到的第一個(gè)問(wèn)題。教授講課時(shí),可能沒(méi)有太多時(shí)間來(lái)詳細(xì)解釋每一個(gè)理論,但是課本上又可能會(huì)有很多深?yuàn)W的解釋,這就給同學(xué)們?cè)斐闪撕艽蟮膶W(xué)習(xí)難題。
2.圖表理解起來(lái)困難
圖表一般是用于說(shuō)明經(jīng)濟(jì)概念和理論的,但是,往往涉及到圖表類的作業(yè)題目,都是讓同學(xué)們感覺(jué)最難的問(wèn)題之一。就拿供給和需求舉例,大部分同學(xué)可能根本不清楚曲線該在什么時(shí)候和什么地方移動(dòng),均衡嘉禾和數(shù)量是什么也不知道,我們面對(duì)的是什么類型的市場(chǎng)都不了解。這些都是導(dǎo)致大家覺(jué)得課程作業(yè)太難的關(guān)鍵因素。
對(duì)于課程作業(yè)問(wèn)題的解決,最好的方式是多加練習(xí),多思考。對(duì)于宏觀經(jīng)濟(jì)學(xué)的諸多概念,要追求理解記憶。有不懂的問(wèn)題,需要及時(shí)求助。如果需要補(bǔ)課,大家也可以隨時(shí)聯(lián)系考而思,我們有專業(yè)的老師可以為大家提供1V1作業(yè)補(bǔ)習(xí)!
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