[Econ衝**] 2017 DSE 經濟科試前討論區

每日一問
到底因為increase progressivity of salaries tax, workers' willingness to supply labour effort decreases, hence their working incentive decreases, labour supply decreases
咁既情況下,到底係有冇dwl,efficiency有冇受到影響

我都想知 market force導致嘅change in equilibrium到底會唔會出現dwl

臨考都仲有concepts未清 又有3科未考 得番幾日溫econ 唉 好灰

另外想問 到底transportation cost=gain from trade嘅時候 仲會唔會有trade
given題目冇話明一定要係mutually beneficial trade

可唔可以解一解5(b)
係咪唔關ppr/tc事？
咁幾時先要答when ppr is well-defined/tc=0, there may not be divergence between private cost and social cost?

其實一直唔係好識答依啲 有無巴打教下上面個兩題點做

5(a)個題因爲有tax->drivers' marginal private cost increases->如果offset到marginal social cost就唔會有divergence
5(b)求解 想知點解唔關prr/tc事 同埋幾時會關佢地事

可唔可以解一解5(b)
係咪唔關ppr/tc事？
咁幾時先要答when ppr is well-defined/tc=0, there may not be divergence between private cost and social cost?

其實一直唔係好識答依啲 有無巴打教下上面個兩題點做

5(a)個題因爲有tax->drivers' marginal private cost increases->如果offset到marginal social cost就唔會有divergence
5(b)求解 想知點解唔關prr/tc事 同埋幾時會關佢地事

可唔可以解一解5(b)
係咪唔關ppr/tc事？
咁幾時先要答when ppr is well-defined/tc=0, there may not be divergence between private cost and social cost?

其實一直唔係好識答依啲 有無巴打教下上面個兩題點做

5(a)個題因爲有tax->drivers' marginal private cost increases->如果offset到marginal social cost就唔會有divergence
5(b)求解 想知點解唔關prr/tc事 同埋幾時會關佢地事

我諗到係Demonstrator都可以買野
呢個external benefit 可以offset到

ans?

想問下係咪因爲equation of exchange is always true(not refutable) 所以"the product of money supply and velocity of circulation equals nominal GDP"依句雖然冇value judgement 但都唔係positive statement?

想問下係咪因爲equation of exchange is always true(not refutable) 所以"the product of money supply and velocity of circulation equals nominal GDP"依句雖然冇value judgement 但都唔係positive statement?

想問下係咪因爲equation of exchange is always true(not refutable) 所以"the product of money supply and velocity of circulation equals nominal GDP"依句雖然冇value judgement 但都唔係positive statement?

想問下係咪因爲equation of exchange is always true(not refutable) 所以"the product of money supply and velocity of circulation equals nominal GDP"依句雖然冇value judgement 但都唔係positive statement?

The sun rises from the east
呢句野都係always true(not refutable嫁
點解呢句會係positive statement但上面個句唔係

想問下係咪因爲equation of exchange is always true(not refutable) 所以"the product of money supply and velocity of circulation equals nominal GDP"依句雖然冇value judgement 但都唔係positive statement?

You are totally correct.

想問下係咪因爲equation of exchange is always true(not refutable) 所以"the product of money supply and velocity of circulation equals nominal GDP"依句雖然冇value judgement 但都唔係positive statement?

The sun rises from the east
呢句野都係always true(not refutable嫁
點解呢句會係positive statement但上面個句唔係

因為equation of exchange直頭係一條identity 數學上黎講佢永遠都係岩 而the sun rises from the east 如果有人係歷史上搵到一日太陽由西邊升起 照計係可以推翻到？ （9up）
其實我都唔sure 揀答案個時以為係positive 點知答案係normative 自己嘗試推論番only

想問下係咪因爲equation of exchange is always true(not refutable) 所以"the product of money supply and velocity of circulation equals nominal GDP"依句雖然冇value judgement 但都唔係positive statement?

The sun rises from the east
呢句野都係always true(not refutable嫁
點解呢句會係positive statement但上面個句唔係

因為equation of exchange直頭係一條identity 數學上黎講佢永遠都係岩 而the sun rises from the east 如果有人係歷史上搵到一日太陽由西邊升起 照計係可以推翻到？ （9up）
其實我都唔sure 揀答案個時以為係positive 點知答案係normative 自己嘗試推論番only

想問下係咪因爲equation of exchange is always true(not refutable) 所以"the product of money supply and velocity of circulation equals nominal GDP"依句雖然冇value judgement 但都唔係positive statement?

The sun rises from the east
呢句野都係always true(not refutable嫁
點解呢句會係positive statement但上面個句唔係

因為equation of exchange直頭係一條identity 數學上黎講佢永遠都係岩 而the sun rises from the east 如果有人係歷史上搵到一日太陽由西邊升起 照計係可以推翻到？ （9up）
其實我都唔sure 揀答案個時以為係positive 點知答案係normative 自己嘗試推論番only

其實呢度涉及AL methodology嗰part。
MV≡PY 只係從兩個角度看同一件事，邏輯上不可能錯亦不可能被推翻，連想像中係錯嘅可能性都冇。
四腳蛇有四隻腳，1+1=2，你點想像都冇可能錯。
但係太陽由東邊升起其實唔係邏輯上諗唔到呢句係錯，例如可以係由西邊升起。呢句係可以喺想像中錯嘅。但係事實上太陽的確係由東邊升起，所以呢句說話其實已經被驗證咗，refutable by facts.