[神棍演繹經濟學 - Andrew Lo上篇2：無學歷] by 懸崖Cliff Yeung 【5】- 推到甜品2
你冇得同我架FC鬥
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好想知個emoji係唔係懸崖打出嚟
喂 柒頭 講野可唔可以用下腦先
唔好嘈啦，就有早餐食啦🤗🤗🤗
marketing ge 野
早餐呢🤗
等午餐
係咪又要變宵夜
無人有私補佬講果兩年中文卷
？
？依個位我都有興趣知。
以下我貼返syllabus同past paper方便大家討論。
不過Cliff份mock我就無，要留比其他巴打貼嗰一題。
Syllabus就咁寫：
Aggregate supply (AS)
(i) Reasons for an upward sloping short run AS curve
Students are expected to grasp “imperfect adjustment of input and output prices” as the
explanation for an upward-sloping SRAS curve.
DSE Practice Paper 2 Q13a題目：
Why is the short run aggregate supply curve upward-sloping?
DSE Practice Paper 2 Q13a Marking scheme：
Sticky wage rates:
Output prices increase faster than input prices and firms are profitable to produce more output.
(Other approaches also accepted.)
DSE 2016 Paper 2 Q5題目：
Explain, with ONE reason, why the short-run aggregate supply curve is upward-sloping. (3 marks)
DSE 2016 Paper 2 Q5 Marking scheme:
When the price level increases, the adjustment of input prices is imperfect/incomplete (e.g. due to the long term contracts of factor of production), so the real cost of production - i.e. nominal cost divided by the general price level - will fall. Firms would thus use more factor inputs to produce larger output. Therefore, the SRAS curve is upward-sloping, i.e. a higher price level would result in a higher output level.
以下我貼返syllabus同past paper方便大家討論。
不過Cliff份mock我就無，要留比其他巴打貼嗰一題。
Syllabus就咁寫：
Aggregate supply (AS)
(i) Reasons for an upward sloping short run AS curve
Students are expected to grasp “imperfect adjustment of input and output prices” as the
explanation for an upward-sloping SRAS curve.
DSE Practice Paper 2 Q13a題目：
Why is the short run aggregate supply curve upward-sloping?
DSE Practice Paper 2 Q13a Marking scheme：
Sticky wage rates:
Output prices increase faster than input prices and firms are profitable to produce more output.
(Other approaches also accepted.)
DSE 2016 Paper 2 Q5題目：
Explain, with ONE reason, why the short-run aggregate supply curve is upward-sloping. (3 marks)
DSE 2016 Paper 2 Q5 Marking scheme:
When the price level increases, the adjustment of input prices is imperfect/incomplete (e.g. due to the long term contracts of factor of production), so the real cost of production - i.e. nominal cost divided by the general price level - will fall. Firms would thus use more factor inputs to produce larger output. Therefore, the SRAS curve is upward-sloping, i.e. a higher price level would result in a higher output level.
睇嚟要變lunch
outlier巴打有無埋中文卷可以參考,想睇晒兩邊語義.英文就幾明顯factor price有變, increase faster than input price(兩個都有升,但faster),2016仲明顯, incomplete adjustment(有郁先會話incomplete吧, complete咗部分)
課程大綱都係imperfect adjustment,即有adjust只係未perfect
無一句係CY寫既unchanged 或fixed,會唔會中文有
課程大綱都係imperfect adjustment,即有adjust只係未perfect
無一句係CY寫既unchanged 或fixed,會唔會中文有
同埋有巴打話,CY網上解題片話上堂解釋係shifting factors,所以move along時不變. outlier大神點睇
完全無晒學術討論淨花生
完全無晒學術討論淨花生
你pm佢應該會回應
無一句係CY寫既unchanged 或fixed,會唔會中文有
Syllabus當然無寫啦，Syllabus的作用都唔係咁。
正如syllabus講demand curve，都唔會講沿住一條demand curve到底有咩嘢係constant。
嗰兩題Past Paper當然都無寫啦，因為都唔係問緊依樣嘢（沿住一條SRAS到底有咩係constant）。
同埋有巴打話,CY網上解題片話上堂解釋係shifting factors,所以move along時不變. outlier大神點睇
完全無晒學術討論淨花生
其實我自己都係咁解，所以我先有興趣討論依樣嘢。
即係shifting factor真係沿線會keep constant?
你pm佢應該會回應
遲啲先啦
而家阻人食花生罪大惡極
唔理係甜品，早餐定lunch
都會等食
都會等食
午餐都嚟緊啦
成班手足等開飯
成班手足等開飯
琴晚我睇完嗰位補習老師嘅回覆之後都諗咗一陣。
佢提出依個問題真係好好。
DSE 2013 Paper 1 Q10都出過一題問依個概念
Which of the following is assumed to be constant when the market demand curve of a good is derived?
(1) the income of the consumers
(2) the price of the good
(3) prices of related goods
(4) preference of the consumers
A. (1) and (3) only
B. (2) and (3) only
C. (1), (2) and (4) only
D. (1), (3) and (4) only
跟住我剛剛想起張五常的《經濟解釋》。
各位同學背需求定律的時候，應該都記得定義有講「其他因素不變」。
張五常的《經濟解釋》有講過應用需求定律的時候，到底有咩可以變，有咩唔可以變。
糖係咖啡的complement，以DSE Econ的角度嚟睇，糖的價格上升，當然會令咖啡的需求減少。
依度應該屬於張五常所講的第二點，直接shift demand的因素應該保持不變。
值得留意的係第三點。
但係如果咖啡的價格下降，糖的需求會增加，然後會導致糖的價格上升，然後又會令咖啡的需求減少，從而令咖啡的需求量減少。
張五常就覺得這些「中間」的因素都會影響需求量，就係可變。
咁如果你問沿住咖啡的需求曲線糖的價格係咪不變。
我覺得要睇下屬於糖的價格變動係exogenous定endogenous。
如果係中間因素(endogenous)，就可變。
至於上面依堆嘢點樣套落SRAS，我就未有時間諗，而家返緊工。
佢提出依個問題真係好好。
DSE 2013 Paper 1 Q10都出過一題問依個概念
Which of the following is assumed to be constant when the market demand curve of a good is derived?
(1) the income of the consumers
(2) the price of the good
(3) prices of related goods
(4) preference of the consumers
A. (1) and (3) only
B. (2) and (3) only
C. (1), (2) and (4) only
D. (1), (3) and (4) only
跟住我剛剛想起張五常的《經濟解釋》。
各位同學背需求定律的時候，應該都記得定義有講「其他因素不變」。
張五常的《經濟解釋》有講過應用需求定律的時候，到底有咩可以變，有咩唔可以變。
糖係咖啡的complement，以DSE Econ的角度嚟睇，糖的價格上升，當然會令咖啡的需求減少。
依度應該屬於張五常所講的第二點，直接shift demand的因素應該保持不變。
值得留意的係第三點。
但係如果咖啡的價格下降，糖的需求會增加，然後會導致糖的價格上升，然後又會令咖啡的需求減少，從而令咖啡的需求量減少。
張五常就覺得這些「中間」的因素都會影響需求量，就係可變。
咁如果你問沿住咖啡的需求曲線糖的價格係咪不變。
我覺得要睇下屬於糖的價格變動係exogenous定endogenous。
如果係中間因素(endogenous)，就可變。
至於上面依堆嘢點樣套落SRAS，我就未有時間諗，而家返緊工。
