經濟友
Wednesday, June 13, 2007
Tuesday, June 12, 2007
高考經濟之課程簡介
雖然距離會考放榜仲有57日, 已經有好幾個F5學生問經濟友關於F6嘅選科問題, 特別多人鍾意問 “AL/AS Econ 讀d乜”,“有咩requirements先可修續Econ”, “AL同CE嘅程度聽講差好遠, 如果會考A唔到, 敢高考咪好大機會冇A? 如果會考得C, 人哋話高考分分鐘冇credit, 係唔係架? “聽講AL Econ 嘅答題技巧同CE level好唔同, 要寫essay而唔係好似會考續個point俾分, 敢英文差會唔會好蝕底?”……等等
先講吓AL Econ 讀d乜, Paper 1 – Microeconomics, Paper 2 – Macroeconomics, 每份卷各考3粒鐘, 各有Section A – MCQ, Section B – Short questions (economic concepts & theories), Section C – Long questions (applications + economic concepts), 每個section佔40分, 即Paper 1 同 Paper 2每份卷120分。而AS Econ齋考 Paper 1, 即係只考Microeconomics, 份卷同AL Econ一模一樣, Macroeconomics 唔考。
一般嚟講, 多數嘅學校開AL Econ (較少開AS level), 响F6會教晒 Microeconomics, 暑假同F7會教埋 Macroeconomics。
同學可以去考評局個網址睇2009 HKAL Econ syllabus: http://eant01.hkeaa.edu.hk/hkea/topper_hkale.asp?p_coverdown=hkale_3.html
經濟友將 F6嘅syllabus分為6大topics, 一共18個sections, 而F7嘅syllabus分為5大topics, 一共17個sections.
經濟友
先講吓AL Econ 讀d乜, Paper 1 – Microeconomics, Paper 2 – Macroeconomics, 每份卷各考3粒鐘, 各有Section A – MCQ, Section B – Short questions (economic concepts & theories), Section C – Long questions (applications + economic concepts), 每個section佔40分, 即Paper 1 同 Paper 2每份卷120分。而AS Econ齋考 Paper 1, 即係只考Microeconomics, 份卷同AL Econ一模一樣, Macroeconomics 唔考。
一般嚟講, 多數嘅學校開AL Econ (較少開AS level), 响F6會教晒 Microeconomics, 暑假同F7會教埋 Macroeconomics。
同學可以去考評局個網址睇2009 HKAL Econ syllabus: http://eant01.hkeaa.edu.hk/hkea/topper_hkale.asp?p_coverdown=hkale_3.html
經濟友將 F6嘅syllabus分為6大topics, 一共18個sections, 而F7嘅syllabus分為5大topics, 一共17個sections.
經濟友
Sunday, June 10, 2007
會考經濟(09/06/2007) fishhouse127問
fishhouse127問:
1.Some economists have suggested that the government-owned RTHK should be changed to a private enterprise. Give two reasons for supporting the suggestion.
2.With more customer, ‘Yummy Yummy’ has to employ more workers to increase the output. However, with its existing facilities and equipment, the shop could not further increase the output by employing more workers when the no. of workers has reached a certain level. Name and state the economics law which explains the above situation.
3. Form the view point of society, give two advantages a public corporation has over a government department.
4. Derived demand 同 joint demand 有咩分別?
5. During a rainy period, the price of umbrellas increased by 5% while the quantity transacted increased by 10%.
Which of the following is true about the above situations?
A. the supply is elastic
B. The demand is elastic.
本書個正確答案係A，但係點解唔係B？
Fishhouse127,
Q1 and Q3: 响新syllabus (由 HKCEE 2005開始)唔考嫁喇!
Q2: 呢題係 CE 93-Q1(b) (5分), 答案係law of diminishing marginal returns (邊際回報遞減定律), 因為題目話“the shop could not further increase the output by employing more workers”(間鋪冇法增加工人去增加產出), 即係話workers係fixed factors (固定要素), 同學温番Input, Output and Cost (投入, 產出與成本)呢個section, 一係考short run (短期, 有fixed factors + variable factors 可變要素) 嘅law of diminishing marginal returns, 一係考long run (長期, 冇fixed factors, 只有variable factors)嘅economies of scale (規模經濟), 所以呢題講緊short run, 擺明考law of diminishing marginal returns。當年嘅marking 好鬆吓, 嗡到個law俾2分, 寫埋definition俾埋果3分, 一共5分。
Q4: Derived demand 同 joint demand 有咩分別? 睇番經濟友响會考經濟(24/04/2007) annaboa 問嘅解釋啦!
Q5: 呢題MC同 HKCEE MCQ 9/2006問法一樣, 經濟友响24/03/2007果場Econ奪A解碼講座解釋過。簡單o黎講, 第一, 題目話明price (價格) 同quantity (數量) 都係上升 (即同方向), 諗番Ed = % change in Qd/ % change in P, 跟據law of demand (需求定律), P 同Qd係反方向, 再諗番Es = % change in Qs/ % change in P, 跟據law of supply (供給定律), P 同Qs係同方向, 所以一定係睇Es而唔係Ed。第二, Es = % change in Qs/ % change in P, 分子上升10%, 分母上升5%, 所以Es >1, 即elastic supply (彈性供給)。答案係A喇! 點解唔係B？同學如果明白change in demand (需求) 同change in quantity demanded (需求量)嘅分別, 就知道題目係因raining (唔係price平咗)而買多咗umbrella, 所以係 demand 增加 (即demand curve shifts to the right)。問題 唔係睇消費者買umbrella時候, 因price下跌而令到 quantity demanded 上升嘅反應, 換句話講, 唔係考慮Ed.
經濟友
1.Some economists have suggested that the government-owned RTHK should be changed to a private enterprise. Give two reasons for supporting the suggestion.
2.With more customer, ‘Yummy Yummy’ has to employ more workers to increase the output. However, with its existing facilities and equipment, the shop could not further increase the output by employing more workers when the no. of workers has reached a certain level. Name and state the economics law which explains the above situation.
3. Form the view point of society, give two advantages a public corporation has over a government department.
4. Derived demand 同 joint demand 有咩分別?
5. During a rainy period, the price of umbrellas increased by 5% while the quantity transacted increased by 10%.
Which of the following is true about the above situations?
A. the supply is elastic
B. The demand is elastic.
本書個正確答案係A，但係點解唔係B？
Fishhouse127,
Q1 and Q3: 响新syllabus (由 HKCEE 2005開始)唔考嫁喇!
Q2: 呢題係 CE 93-Q1(b) (5分), 答案係law of diminishing marginal returns (邊際回報遞減定律), 因為題目話“the shop could not further increase the output by employing more workers”(間鋪冇法增加工人去增加產出), 即係話workers係fixed factors (固定要素), 同學温番Input, Output and Cost (投入, 產出與成本)呢個section, 一係考short run (短期, 有fixed factors + variable factors 可變要素) 嘅law of diminishing marginal returns, 一係考long run (長期, 冇fixed factors, 只有variable factors)嘅economies of scale (規模經濟), 所以呢題講緊short run, 擺明考law of diminishing marginal returns。當年嘅marking 好鬆吓, 嗡到個law俾2分, 寫埋definition俾埋果3分, 一共5分。
Q4: Derived demand 同 joint demand 有咩分別? 睇番經濟友响會考經濟(24/04/2007) annaboa 問嘅解釋啦!
Q5: 呢題MC同 HKCEE MCQ 9/2006問法一樣, 經濟友响24/03/2007果場Econ奪A解碼講座解釋過。簡單o黎講, 第一, 題目話明price (價格) 同quantity (數量) 都係上升 (即同方向), 諗番Ed = % change in Qd/ % change in P, 跟據law of demand (需求定律), P 同Qd係反方向, 再諗番Es = % change in Qs/ % change in P, 跟據law of supply (供給定律), P 同Qs係同方向, 所以一定係睇Es而唔係Ed。第二, Es = % change in Qs/ % change in P, 分子上升10%, 分母上升5%, 所以Es >1, 即elastic supply (彈性供給)。答案係A喇! 點解唔係B？同學如果明白change in demand (需求) 同change in quantity demanded (需求量)嘅分別, 就知道題目係因raining (唔係price平咗)而買多咗umbrella, 所以係 demand 增加 (即demand curve shifts to the right)。問題 唔係睇消費者買umbrella時候, 因price下跌而令到 quantity demanded 上升嘅反應, 換句話講, 唔係考慮Ed.
經濟友
Saturday, June 9, 2007
會考經濟(09/06/2007) 三文魚問
三文魚問:A book shop merged with a restaurant.Identify the type of integration and explain two possible motives for this type of integration.
三文魚,
Book shop (書店)同restaurant (餐廳)兩種行業完全無關, 9唔搭8嘅合併叫做conglomerate integration , i.e. combination of firms engaging in different types of production (集團整合, 即某廠商與另一間業務性質完全不同的廠商合併。)
General motives:
1. Benefit from economies of scale (規模經濟)
2. More efficient use of resources (更有效善用資源)
3. Promotion of brandname (品牌效應)
4. Greater market power
Specific motive:
Diversify products and reduce risks (多元化的發展及分散風險)
經濟友
三文魚,
Book shop (書店)同restaurant (餐廳)兩種行業完全無關, 9唔搭8嘅合併叫做conglomerate integration , i.e. combination of firms engaging in different types of production (集團整合, 即某廠商與另一間業務性質完全不同的廠商合併。)
General motives:
1. Benefit from economies of scale (規模經濟)
2. More efficient use of resources (更有效善用資源)
3. Promotion of brandname (品牌效應)
4. Greater market power
Specific motive:
Diversify products and reduce risks (多元化的發展及分散風險)
經濟友
Wednesday, June 6, 2007
會考經濟(03/06/2007) chris88819問
chris88819問: 在Econ學,超級市場屬於什麼?是Oligopoly嗎? 那麼在市場的特性是什麼?
以下係阿門嘅解釋 (source: http://hk.knowledge.yahoo.com/question/?qid=7007060303289): oligopoly 即係寡頭壟斷, 市場有數個 sellers(好似惠康同百住咁)好多 buyers(你同我都係), 佢地都係 face 一條 downward 的 demand curve所以佢地唔會知咩野時候個 price 先係最好, 要試搵佢地出黎 (price searcher), 佢地 competition, 好多時佢地的 pricing strategy 會同佢地的對手有互動, 最容易引發價格戰好似早幾年的價格戰, 都係由於寡頭壟斷引起。
相信大家都明白上述解釋, 經濟友想提番同學兩點, 第一, 要identify (辨認)邊種market structure (市場結構)嘅題目, 首先諗吓seller (經營者)所佔嘅market share (市場佔有率), 然後諗features (特徵)。第二, 考慮係唔係oligopoly (寡頭壟斷)時, 諗吓市場有冇幾個dominant sellers (主要經營者)响度「打骰」,而且佢哋之間會互相影響,尤其係price competition (價格競爭), 同埋 non-price competition(非價格競爭), 好似惠康同百住咁, 兩間超市鬥平,鬥服務質素等。有學生問過經濟友, 屋邨仲有一d中小型超市同士多, 咁市場有many sellers (多個經營者), 點解唔係monopolistic competition (壟斷性競爭)呢? 因為睇番整個市場, 呢d中小型超市同士多所佔嘅market share 唔大, 惠康、百住同華潤攞咗over 70%嘅佔有率, 佢哋係dominant sellers, 所以係oligopoly!
經濟友
以下係阿門嘅解釋 (source: http://hk.knowledge.yahoo.com/question/?qid=7007060303289): oligopoly 即係寡頭壟斷, 市場有數個 sellers(好似惠康同百住咁)好多 buyers(你同我都係), 佢地都係 face 一條 downward 的 demand curve所以佢地唔會知咩野時候個 price 先係最好, 要試搵佢地出黎 (price searcher), 佢地 competition, 好多時佢地的 pricing strategy 會同佢地的對手有互動, 最容易引發價格戰好似早幾年的價格戰, 都係由於寡頭壟斷引起。
相信大家都明白上述解釋, 經濟友想提番同學兩點, 第一, 要identify (辨認)邊種market structure (市場結構)嘅題目, 首先諗吓seller (經營者)所佔嘅market share (市場佔有率), 然後諗features (特徵)。第二, 考慮係唔係oligopoly (寡頭壟斷)時, 諗吓市場有冇幾個dominant sellers (主要經營者)响度「打骰」,而且佢哋之間會互相影響,尤其係price competition (價格競爭), 同埋 non-price competition(非價格競爭), 好似惠康同百住咁, 兩間超市鬥平,鬥服務質素等。有學生問過經濟友, 屋邨仲有一d中小型超市同士多, 咁市場有many sellers (多個經營者), 點解唔係monopolistic competition (壟斷性競爭)呢? 因為睇番整個市場, 呢d中小型超市同士多所佔嘅market share 唔大, 惠康、百住同華潤攞咗over 70%嘅佔有率, 佢哋係dominant sellers, 所以係oligopoly!
經濟友
Tuesday, June 5, 2007
會考經濟(03/06/2007) m19abc問
m19abc問: Econ幾個好重要問題！！唔該幫我答, 問題如下：
1.what is the Adv.s of partnership over sole proprietorship？
2.what is the Adv.s of issuing bonds？
同學記得答題果陣唔好寫漏keywords (即以下填充位置)!
同學要留心題目問shares (股票)好過bonds (債券), 或者問bonds (債券)好過shares (股票), 係問從發行公司定係從持有人嘅角度睇。
經濟友
1.what is the Adv.s of partnership over sole proprietorship？
2.what is the Adv.s of issuing bonds？
同學記得答題果陣唔好寫漏keywords (即以下填充位置)!
同學要留心題目問shares (股票)好過bonds (債券), 或者問bonds (債券)好過shares (股票), 係問從發行公司定係從持有人嘅角度睇。
經濟友
Monday, June 4, 2007
會考經濟(03/06/2007) cookieliy問
cookieliy問:永仁繼承了他父親的1大片土地後,決定運用土地來種植穀物,以作售賣用途。下列那1項是確的?
A.運用土地的機會成本是零,因為土地是免費得來的。
B.運用土地1個月的機會成本相等於土地的價格,因為永仁可以該價格出售土地。
C.運用土地1個月的機會成本相等於1個月的地租,因為租出土地是其他選擇中價值最高的1個。
D.如果穀物的價格上升,即使租出土地作貨倉用途是其他選擇中價值最高的1個,運用土地的機會成本將會上升。
點解答案系C既`雖然我有題解,但系我都吾明白-0-
以下係Felipchanyin嘅解釋 (source: http://hk.knowledge.yahoo.com/question/?qid=7007060305035)
A唔岩,因為即使係免費,使用土地亦要機會成本,得到土地才不須B唔岩,因為賣掉土地和運用土地1個月在時間上不可比C岩,因為根據機會成本,最高價值之捨棄選擇(HIGHEST valued option forgone)為機會成本, 因此,無論時間上(同為1個月)既然租出土地是其他選擇中價值最高的1個,它就是運用土地1個月的機會成本．D唔岩,既然(HIGHEST valued option forgone)為機會成本,就算穀物的價格上升,亦只會影響選擇了的決定的價值，而不是(HIGHEST valued option forgone)，所以機會成本不會有改變 (Quoted from Felipchanyin on 03/06/2007)
恭喜你, Felipchanyin! 你嘅分析能力反映到有potential 會考經濟攞A! 同學除咗參考Felipchanyin嘅解釋外, 不妨睇埋經濟友一d補充。首先, 同學審題果陣要睇清楚係問cost of “obtaining” land (「取得」土地的機會成本), 定係問 cost of “using” land (「運用」土地的機會成本), 然後諗番opportunity cost (機會成本)嘅定義去apply落題目果度。呢條題目仲考埋land (土地)嘅定義, 即係gift of nature (天賜之物), 大家可以參考今年份卷MCQ 16/2007 (答案係C)。講番 cookieliy條問題, Option A錯嘅原因係衰 “using”(運用) 呢個keyword! 至於其他3個options, 諗吓 highest-valued option forgone of using land (運用土地時所放棄選擇中，價值最高的一個), 加上明白被選項目的價值如何改變都不影響選擇者的機會成本, 相信會知道答案點解係C喇!
經濟友
A.運用土地的機會成本是零,因為土地是免費得來的。
B.運用土地1個月的機會成本相等於土地的價格,因為永仁可以該價格出售土地。
C.運用土地1個月的機會成本相等於1個月的地租,因為租出土地是其他選擇中價值最高的1個。
D.如果穀物的價格上升,即使租出土地作貨倉用途是其他選擇中價值最高的1個,運用土地的機會成本將會上升。
點解答案系C既`雖然我有題解,但系我都吾明白-0-
以下係Felipchanyin嘅解釋 (source: http://hk.knowledge.yahoo.com/question/?qid=7007060305035)
A唔岩,因為即使係免費,使用土地亦要機會成本,得到土地才不須B唔岩,因為賣掉土地和運用土地1個月在時間上不可比C岩,因為根據機會成本,最高價值之捨棄選擇(HIGHEST valued option forgone)為機會成本, 因此,無論時間上(同為1個月)既然租出土地是其他選擇中價值最高的1個,它就是運用土地1個月的機會成本．D唔岩,既然(HIGHEST valued option forgone)為機會成本,就算穀物的價格上升,亦只會影響選擇了的決定的價值，而不是(HIGHEST valued option forgone)，所以機會成本不會有改變 (Quoted from Felipchanyin on 03/06/2007)
恭喜你, Felipchanyin! 你嘅分析能力反映到有potential 會考經濟攞A! 同學除咗參考Felipchanyin嘅解釋外, 不妨睇埋經濟友一d補充。首先, 同學審題果陣要睇清楚係問cost of “obtaining” land (「取得」土地的機會成本), 定係問 cost of “using” land (「運用」土地的機會成本), 然後諗番opportunity cost (機會成本)嘅定義去apply落題目果度。呢條題目仲考埋land (土地)嘅定義, 即係gift of nature (天賜之物), 大家可以參考今年份卷MCQ 16/2007 (答案係C)。講番 cookieliy條問題, Option A錯嘅原因係衰 “using”(運用) 呢個keyword! 至於其他3個options, 諗吓 highest-valued option forgone of using land (運用土地時所放棄選擇中，價值最高的一個), 加上明白被選項目的價值如何改變都不影響選擇者的機會成本, 相信會知道答案點解係C喇!
經濟友
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