金程問(wèn)答
為什么st模式下是fd標(biāo)價(jià)法
Module 1-Practice Problems P54-Question 26-B怎么理解？為什么，當(dāng)marginal revenue=marginal cost時(shí)，利潤(rùn)不是應(yīng)該為0嗎，怎么會(huì)是利潤(rùn)最大化呢？
第三問(wèn)，能否用MC=MR的思路解題？我設(shè)計(jì)了一張數(shù)據(jù)表格，剛好當(dāng)P=3.25時(shí)，MR=MC=2，這個(gè)思路對(duì)嗎？提問(wèn)意思是消費(fèi)者愿意支付的最高價(jià)位就是會(huì)員費(fèi)？消費(fèi)者打球付費(fèi)為什么愿意再額外支付會(huì)員費(fèi)？
本幣升值，采購(gòu)國(guó)外原材料價(jià)格降低，供應(yīng)增加。1. 國(guó)內(nèi)原材料，實(shí)際價(jià)格增高了吧。誰(shuí)站主導(dǎo)地位，這個(gè)不確定吧？
貨幣供應(yīng)過(guò)剩，r會(huì)下降，應(yīng)該選擇i2，為什么是i1，這個(gè)應(yīng)該是貨幣供應(yīng)少吧？
Module 1-Practice Problems P55-Question 33-這道題的知識(shí)點(diǎn)，在教材第幾頁(yè)？
Module 1-Practice Problems P54-Question 27- A選項(xiàng)，即書(shū)（2022-L1V1）P38第一段第2行中，所說(shuō)的：It can be said that a firm breaks even if its price (AR) is exactly equal to its ATC. 為什么price=AR （即: Average revenue）?
勞動(dòng)力的的生產(chǎn)率不會(huì)影響自然失業(yè)率，那會(huì)影響什么？
Module 1-Practice problems P52-Question 16&17題目中說(shuō)的是Exhibit 2，但是Question 16 & 17 上方的表格的最上方寫的是Exhibit 28？ 是否為教材勘誤？
精 Module 1-Economics-書(shū)(2022-L1V1)P40-（1）第1段中的倒數(shù)第2句話，在考慮完$375 variable cost之后，為什么還要再貢獻(xiàn)$25的fixed cost? 什么叫“貢獻(xiàn)”，怎么理解？（2）還是這句話，既然字面意思是could earn revenue of $400, 為什么還會(huì)覆蓋 variable cost of €375 與€25 of fixed costs?這樣，不是收支平衡，即revenue=0 而不是400了嗎？（3）另外，前一句話：If it shuts down and earns zero revenue, then its variable cost would be zero but its losses would still equal the €325 of unavoidable fixed cost. -----> 這句話中，先考慮fixed cost，再考慮varible cost? 怎么區(qū)分fixed cost與variable cost的前后考量順序？
Module 1-Economics-書(shū)P37-Exhibit 17下方第一段-（1）為什么當(dāng)price=SMC(short-run marginal cost)，并且SMC繼續(xù)上升之時(shí)，利潤(rùn)是最大化的？（2）第1段第4行，為什么當(dāng)market price上升時(shí)，需求曲線上移，而不是下移？（3）第1段最后一句話，當(dāng)price=ATC時(shí)，是什么結(jié)果？（4）Exhibit 18那一段，說(shuō)的是，當(dāng)SMR=MR是，才是利潤(rùn)最大化的Quantity，但是Exhibit 17中說(shuō)的卻是，當(dāng)Price=SMR時(shí)，才是利潤(rùn)最大化的Quantity。兩者的區(qū)別是？
Module 1-Economics-書(shū)（2022-L1V1）P32-Exhibit 12下標(biāo)中的倒數(shù)第2點(diǎn)，Beyond this point of production, fixed input constraints reduce the productivity of labor. 為什么，固定的投入限制會(huì)降低勞動(dòng)生產(chǎn)率？productivity of labor的計(jì)算公式是？
Module 1-Economics-1. 書(shū)（2022-L1V1）P31-請(qǐng)問(wèn)怎么理解截圖中標(biāo)黃部分的句子：If one additional hour of labor input causes MC to fall, the firm would want to add that hour and continue adding labor until SMC becomes positively sloped. 為什么會(huì)是positively sloped的？
Module 1-Economics-1. 書(shū)（2022-L1V1）P30-倒數(shù)第四段的最后一句話，公式SMC=w/MPL中的MPL代表什么含義？2.以及怎么結(jié)合P30倒數(shù)第二段最后一句話as more and more labor is added to a fixed amount of capital, the MPL must fall, causing SMCs to rise一起理解？為什么隨著越來(lái)越多的labor is added to a fixed amount of capital, the MPL must fall? MPL代表labor?
精 Module 1-書(shū)（2022-L1V1）P22-Example 2-（1）Solution to 1,為什么要考慮For her birthday, a friend gave her a one-month club membership as a gift, and that month she saw 12 movies？為什么要拿這個(gè)條件下的12 movies與正常預(yù)算情況下可購(gòu)買6 movies相比較？題干中說(shuō)的是，In months that she does join the club, she sees eight movies. 而不是For her birthday, a friend gave her a one-month club membership as a gift, and that month she saw 12 movies. （2）Solution to 2，不太能理解，為什么the income effect of the price decrease has been removed by charging her the monthly fee?以及怎么結(jié)合后一句話一起理解？So the increase from six movies to eight is the result of the substitution effect.（3）Solution to 3, 因?yàn)閙ovies不是必需品essentials, 所以判斷movies are not a Giffen good ? 另外，不太能理解Solution to 3的最后一句話，The substitution effect caused her to buy two more movies, and the income effect caused her to buy an additional four movies.請(qǐng)解析
程寶問(wèn)答
