[ECON] 2017 DSE經濟科討論區(2)

屌 樓上條友做乜鳩呀
有冇用過腦有人會未做個mock架？
浪費左理性巴打一番心意

hi angle

想問下
Perfectly Competitive Market 有無Price Competition?

有
用price做分配資源既工具就有

教科書係寫no further price competition

其實d書可唔可以寫清楚

每年都有一問

f4個年 我個miss話係冇price competition
之後問另外一個阿sir先知係有

其實想問係咪即係當producer ge output未meet到 個p底下ge output個陣就有price competition. 而當meet到ge時候，因為all demand are satisfied, 所以價格(demand) 再無任何上調壓力( d人唔洗再透過價格競爭去獲取資源) , 由此先至得出個一個結論，話 no" further " price competition?
我咁理解有無錯？

你知唔知demand for individual firm in perfect competitive market係點？

係咪 水平線？
有d唔明，想了解入d, 巴打可否講解

有關rationality 你份mock 既1ii
就咁寫Non rival 有1分定要non rival + 佢既definition?
Thanks

先揾OC

求解答
靜係搵到A錯
因為countryA 會出口goodX
即係good X's OC<TOT
option a: 1X=1Y >1X=0.5Y
所以錯左

係咪因為佢比左個nominal interest rate
所以就算佢actual inflation 係4%
nominal interest rate 都中係5%

本身我係咁諗
但係四個答案都唔啱
咁諗其實錯左咩

OC: 1X=2Y
A) incorrect

Tot: 1Y=2X
Compartive advantage=Good Y

B) per gain=2Y-0.5Y=1.5Y

C) Output with trade (0,300)
Import 100X Export 50Y
Consumption with trade=(100,250)
Compare with output under self-sufficiency (100,100)
Gain: 150Y

D) Export 100Y Import 200X
Consumption with trade = ( 200,200)
Gain 100x 100y

係咪因為佢比左個nominal interest rate
所以就算佢actual inflation 係4%
nominal interest rate 都中係5%

本身我係咁諗
但係四個答案都唔啱
咁諗其實錯左咩

Ans係咩？

OC: 1X=2Y
A) incorrect

Tot: 1Y=2X
Compartive advantage=Good Y

B) per gain=2Y-0.5Y=1.5Y

C) Output with trade (0,300)
Import 100X Export 50Y
Consumption with trade=(100,250)
Compare with output under self-sufficiency (100,100)
Gain: 150Y

D) Export 100Y Import 200X
Consumption with trade = ( 200,200)
Gain 100x 100y

上面條international trade

OC: 1X=2Y
A) incorrect

Tot: 1Y=2X
Compartive advantage=Good Y

B) per gain=2Y-0.5Y=1.5Y

C) Output with trade (0,300)
Import 100X Export 50Y
Consumption with trade=(100,250)
Compare with output under self-sufficiency (100,100)
Gain: 150Y

D) Export 100Y Import 200X
Consumption with trade = ( 200,200)
Gain 100x 100y

上面條international trade

ANS: D

OC: 1X=2Y
A) incorrect

Tot: 1Y=2X
Compartive advantage=Good Y

B) per gain=2Y-0.5Y=1.5Y

C) Output with trade (0,300)
Import 100X Export 50Y
Consumption with trade=(100,250)
Compare with output under self-sufficiency (100,100)
Gain: 150Y

D) Export 100Y Import 200X
Consumption with trade = ( 200,200)
Gain 100x 100y

上面條international trade

ANS: D

係
讀e2應該要識
Btw份野係咪cliff mock

OC: 1X=2Y
A) incorrect

Tot: 1Y=2X
Compartive advantage=Good Y

B) per gain=2Y-0.5Y=1.5Y

C) Output with trade (0,300)
Import 100X Export 50Y
Consumption with trade=(100,250)
Compare with output under self-sufficiency (100,100)
Gain: 150Y

D) Export 100Y Import 200X
Consumption with trade = ( 200,200)
Gain 100x 100y

上面條international trade

ANS: D

係
讀e2應該要識
Btw份野係咪cliff mock

無錯

OC: 1X=2Y
A) incorrect

Tot: 1Y=2X
Compartive advantage=Good Y

B) per gain=2Y-0.5Y=1.5Y

C) Output with trade (0,300)
Import 100X Export 50Y
Consumption with trade=(100,250)
Compare with output under self-sufficiency (100,100)
Gain: 150Y

D) Export 100Y Import 200X
Consumption with trade = ( 200,200)
Gain 100x 100y

點搵country A 個OC??

OC: 1X=2Y
A) incorrect

Tot: 1Y=2X
Compartive advantage=Good Y

B) per gain=2Y-0.5Y=1.5Y

C) Output with trade (0,300)
Import 100X Export 50Y
Consumption with trade=(100,250)
Compare with output under self-sufficiency (100,100)
Gain: 150Y

D) Export 100Y Import 200X
Consumption with trade = ( 200,200)
Gain 100x 100y

點搵country A 個OC??

Forgo 100X in exchange for 200Y
Compare output without trade and output with trade

OC: 1X=2Y
A) incorrect

Tot: 1Y=2X
Compartive advantage=Good Y

B) per gain=2Y-0.5Y=1.5Y

C) Output with trade (0,300)
Import 100X Export 50Y
Consumption with trade=(100,250)
Compare with output under self-sufficiency (100,100)
Gain: 150Y

D) Export 100Y Import 200X
Consumption with trade = ( 200,200)
Gain 100x 100y

點搵country A 個OC??

Forgo 100X in exchange for 200Y
Compare output without trade and output with trade

唔該

Why demand curve is horizontal for a firm in perfectly competitive market?

其實答e2 comparative advantage 個陣可唔可以用slope答？之前學校考試咁答個miss比左個？？？我

OC: 1X=2Y
A) incorrect

Tot: 1Y=2X
Compartive advantage=Good Y

B) per gain=2Y-0.5Y=1.5Y

C) Output with trade (0,300)
Import 100X Export 50Y
Consumption with trade=(100,250)
Compare with output under self-sufficiency (100,100)
Gain: 150Y

D) Export 100Y Import 200X
Consumption with trade = ( 200,200)
Gain 100x 100y

點搵country A 個OC??

Forgo 100X in exchange for 200Y
Compare output without trade and output with trade

唔該

其實答e2 comparative advantage 個陣可唔可以用slope答？之前學校考試咁答個miss比左個？？？我

你答斜d/平d?

Why demand curve is horizontal for a firm in perfectly competitive market?

Price taker ma

Why demand curve is horizontal for a firm in perfectly competitive market?

Price taker ma

MR=D=AR=P

其實答e2 comparative advantage 個陣可唔可以用slope答？之前學校考試咁答個miss比左個？？？我

你答斜d/平d?

唔好啦 點解要咁答

其實答e2 comparative advantage 個陣可唔可以用slope答？之前學校考試咁答個miss比左個？？？我

你答斜d/平d?

我答slope of ppf of country a< b so a has a comparative advantage in producing x. 類似咁