Intermediate Macroeconomics Notes 2020-2021
WEEK 1:
Chapter 4: Exchange rates and the Balance of Payments
Exchange rates
E = nominal exchange rate
E = tells how much foreign currency can be exchanged for a unit of domestic currency
Depreciation occurs when there is an increase in E
Appreciation occurs when there is a decrease in E
R = real exchange rate
R = tells how much the goods and services in the domestic country can be exchanged for the goods and services in a foreign
country.
e.g. ↑ prices US → you can buy less with your Euros from US
IS curve
,Balance of Payments
Balance of payments: detailed record of international transactions (i.e. Mirror image of foreign exchange market!)
Three main components
All three involve buying and selling of currency
1. Current account (CA) = represents a country's cross-border transactions of goods and services, payments made to
foreign investors, and transfers such as foreign aid.
2. Capital account (CP) =keeps track of the net change in a nation's assets and liabilities during a year. Capital
account's balance will inform economists whether the country is a net importer or net exporter of capital. – records
private financial transactions.
3. Official Reserves Account (OR) = Central Bank actions on FE market. Part of the capital account, are the foreign
currency and securities held by the central bank of a country and used to balance the payments from year-to-year.
The reserves increase in case of a trade surplus and decrease when there is a trade deficit.
(+) sign for all transactions that involve purchase of domestic currency
(-) sign for all transactions that involve sale of domestic currency
Double bookkeeping: Demand and supply of domestic currency always in balance
= FE market always clears
BoP = CA + CP + OR = 0
BoP surplus = CA-CP = OR
• Degree to which Central Bank intervenes in Foreign Exchange (FE) market
• Indicates degree to which exchange rate reflects market forces
• Fully flexible exchange rate → OR = 0 (when central bank refrains/stops from foreign exchange market
involvement)
• CA + CP = 0
• CA = -CP
• Shows how surplus or deficit on CA is financed!
IS-LM Model
• How to incorporate FE market into IS-LM model?
• BoP reflects demand and supply for currency
• Flexible exchange rate → OR=0
• CA = -CP or CA + CP = 0
• So we need to find a way to get CA and CP into IS-LM
• Include a curve that captures equilibrium on FE market in Y-i space
,Current Account
Note: An Exchange Rate Depreciation or a rise in World Income moves the CA up,
shifting the CA=0 line to the right
Capital Account
• Capital flows across borders in search for highest return
• Return on capital = i
When E depreciates Exports>Imports budget surplus
When E appreciates Exports<Imports budget deficit
, Equilibrium on FE market
FE curve = all combinations of Y and i where FE market is in equilibrium
FE curve positive slope
Start in point A. Assume ↑ in Y → increase imports → Deficit on CA
Need for capital import → surplus on CP
How to get more capital import → ↑ i → point B
Simplifying assumption for FE curve
CP = k ( i - iworld )
BoP = CA + CP = 0
i = iworld
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller alexagth. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.36. You're not tied to anything after your purchase.