重要事項 Import Notes

重要事項 Import Notes
修習國際金融專題學生,
請務必參見 課程網頁維護重要事項 Import Notes
Registered students MUST see the Import Notes

2014-10-06

國際金融學習記事-賴銀俊

2014.10.20

1.6  Monetary approach to determine of exchange rate 
  假設 : free capital market & ppp holds
  one country model
   ppp: p = sp*
   ms=md=kpy (貨幣數量學說)
   s = ms / kp*y
  two countries 
   因為s(domestic$/foreign$)
   p* : rest of the world 
   s~:effective exchange rate - 加權匯率
   替代bilateral(雙邊) exchange rate 
   domestic
   ms=md=kpy
   foreign
   ms*=md*=k*p*y*
   combine : p=sp*
   所以s=p*/p
     =(ms/ms*)/(k/k*)(y/y*)

Lecture 2 實證模型

  theory → empirical model
   大師 → Expertise
   研究人員 → 後代補充
   common sense(可想而知的道理) → 新的修正

 2.1 theoretical model 

    function relationship
    y = f(x)
    observe
    x↑ → y ↑(↓)
   functional form
     1.specific form 
     2.unknow form 
ss       unknown form
     → assume one 自設一個
      Approximation 
     linear form (不一定精確)
     original : y=f(x,x2,........)
     則 y = b0+b1x1+b2x2+......
     可能有non-linear forms 
        non-linearity 

     非線性non-linearity
      1. in independent variables
       y=  y = b0 + b1x + b2x2+ c1x + c2x2 + 
                       ····· +d1x1x2 →interaction terms
      2. in parameters
       y = b0+g(z)x1+g(z)x2+.....
       不同z→不同參數係數
 
   case2.1 interest rate parity (i.r p)
      
       前置作業
        1.一階差分 (first - difference) 
        2.log對數及運算

    rate of change 變動率
       i.e  growth rate : y所得 gt = dlny= ΔYt / Yt
       i.e, (rate of) return 報酬率
   UIP (Uncovered interest rate parity)
    it : t 時間 domestic interest rate
       it* : t 時間 foreign interest rate
       st : spot rate in t
       st+1 : spot rate ahead of 1 - period
       UIP: (1+it ) = (1+it*st+1/st
       if 1+i> (1+it*st+1/st => $=> 外國人會買NTD
       if ( 1+i< (1+it*st+1/st => USD
       in eguilibrian 均衡: (1+it ) = (1+it*)st+1/st
 UIP 變形 transformation
   (a) i = i*+ds
           (b) Δi = ds
           定義:def.st = ln st
           Original UIP: (Hi) =(1/st )Hi* st+1
           ln (1+i) = ln ( 1/st )(1+i*) st+1
           = ln (1+i*) +ln ( st+1/st)
           Any x => ln (1+x) =x
          故:i= i*+ln( st+1/st) = i*+(lnst+1 -ln st )
          = i*+d.lnst+1
          = i*+d st+1
          (b) Δit = it - it*
          = d st+1
          = st+1 - st
         interest - rate differential (利率差)
         UIP 的問題:st+1 未知 in t
        *CIP : (1+i= (1/st) (1+i*)Ft

 2014.10.13

1.1 定義
  S:spot exchange rate
  F:forward ex.rate遠期匯率
  a contract 約定未來交易之約定
  浮動匯率制(under frexible market):s上升本國貨幣貶值(depreciation) s下降則本國貨幣升值(appreciation)
  固定匯率:大部分對美金固定 例:人民幣(RMB) 升值(revaluation) 貶值(devaluation)
1.2 Markets
  sopt market
  forward market 約定金額
  futures market 一"口"固定金額
  option
  swap:換匯
1.3 focus of international finance
  1. exchange rate - short run
     金融商品view: 報酬(return)、風險 (risk) 
     ARIMA,GARCH
  2. Macro-econ impact - long-run 
      exchange rate determination 匯率決定
    PPP ,UIP
  3. Micro porfolio model 
  4. Financial crisis : 金融危機
  5. Integration : 市場整合
1.4 why capital flows over the world?
  1. 貿易需求 : 物流
  2. 套利(理財)需求 : 金流
  3. 投機性需求 : 資訊流
1.5 exchange rate 決定
  貨幣學派之exchange rate 決定
  (本國物價,外國物價決定匯率)
   假設 : 自由市場 + ppp 成立

   ppp : p=sp*     p: 本國物價
                         s: 即期匯率                               
                             p*: 外國物價

  根據貨幣需求理論
   md=k‧p‧y
  y:本國實質所得
  p=sp* => s=p/p* 
  ms = md = kpy
  M=k(sp*)y=k‧s‧p*‧y 
  
  monetary Approach to exchange rate determination
    
         本國貨幣市場均衡   
         ms=md=kpy => p=ms/ky
         外國ms*=md*=k*p*y* => p*=m*s*/k*y*
   assumption : p=sp*
          s=p/p*=ms/ky/ms*/k*y*=ms/ms*/(k/k*)(y/y*)



2014.10.06


  介紹各章節概要

  google scholar介紹

  匯率 本國貨幣/外國貨幣 ex:30NT/USD

  spot rate 即期匯率 符號S,s

  forward rate 遠期匯率 符號F,f
  
  國際金融重點:匯率和國際收支

  coursera:cortsera 是由史丹佛大學的計算機科學教授吳恩達和達芙妮·科勒聯合創建的一個營利性的教育科技公司。 coursera與多家大學合作,給大眾帶來一些在線免費課堂。

  翻轉教室:是近來藉由科技解決此問題所產生的一種教學方式:所謂翻轉,是指將課堂「知識講授」和學生回家自行練習「作業」的順序對調。
  

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== Posted on 2009.10.05 ==
請同學在你所選的 paper 加上
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