POST READING
The first part looks at money, output and expectations as the three major macroeconomic forces, and the interplay
The second part looks at ancillary topics like accounting for GDP and BOP statements
Pretty quick, basic read
Application: add to framework on macro
I.1 \ OUTPUT
Is key because ultimately it's output / capita that makes a country wealthy (vs. money/capita because printing)
Measure is GDP via the expenditure method (vs. value added or income) and is a fx CIGNx ==> if output (GDP) consumed is more than created (CIG) then NX has to be -ve ==> imports> exports ==> country is borrowing from abroad
Output increases with labor, capital or TFP
2 approaches:
A. Supply side / trickle down / Reaganomics wherein the belief is willingness of producers' sets economic growth
○ Focuses on increasing output i.e. the supply
○ E.g. reduce tax to increase wages increasing consumption and prompting investment which ought to drive R&D, increasing TFP in the long run
B. Keynesian theory calls for "managing demand" via government expenditure and lower taxes through monetary and fiscal policy
Recessions occur because in the short run the prices are sticky as is employment, and in the longer run, you have shocks
I.2\ MONEY
3 prices of money are interest rates, exchange rates and aggregate price of all goods and services i.e. price deflator
If money supply goes up, price for money goes down i.e. rates go down, the currency depreciates and inflation goes up
What's interesting is the interplay of these three price factors
E.g. real GDP up if output rises while nominal up if output and prices rise
Or if money supply goes up, nominal rates can fall but inflation is expected then it can push nominal rates up, ambiguous
Money illusion: when people think in nominal terms and see their incomes going up vs the effect of inflation
Money supply is changed by central bank either changing the rate at which banks to lend each other i.e. discount rate or the reserve requirement of more often, open market operations
I.3\ EXPECTATIONS
Can drive reality
E.g. if you expect inflation to go up, then you increase your prices expecting wages to go up which then becomes self fulfilling
Or if you expect bad times, you save more and reduce consumption and the GDP falls below optimal levels i.e. GDP gap
Solution 1: monetary policy
Issue is liquidity trap wherein rate are near 0 which reduces the desire to convert money into financial assets (because you aren't earning anything) and demand for cash goes up with supply so rates stay the same
Solution 2: fiscal policy i.e. increase the G in CIGNx
Increase the deficit, but if we're at full employment, caution, it'll increase inflation. If we're at low employments then output goes up AND prices go up
II.1\ US MONETARY HISTORY
Gold system ought to be self regulating in theory
Inflation goes up, prices rise, imports rise, gold leaves the country, price of gold domestically goes up and inflation falls
Issue is rates fluctuate wildly with seasonal demand for money
II.2\ GDP ACCOUNTING
Expenditure method is preferred, final expenditure on all goods and services
NDP = GDP less depreciation but the issue is no real practical way of measuring depreciation
GNP is output by residents of a country living anywhere while GDP is within the borders of the country
II.3\ READING BOP STATEMENTS
It's an account of cross border transactions
Page 116
The financial account line item under capital account is key
Omissions are plugs but it's where money leaving the country in secret show s up, it's people in the know taking assets out discreetly
Double entry system
…credits: think of them as sources of fx, or, an increase in liabilities or decrease in assets
… debits: uses of fx, or, increases in assets or decrease in liabilities
II.4\ FX
Current account surplus is when demand by foreigners of a country's goods and services
Inflation rises, LT fx depreciates
If rates rise, demand for fx goes up as foreigners want more of the fin assets
II.5\ CONNECTING, OUTPUT WITH EXPECTATIONS AND MONEY
Page 133
Money supply affects inflation, interest rates and fx rates
Macroeconomics deals with money supply
E.g. when it goes up, nominal GDP goes up but real GDP (measured in constant currency) may not as it measures output increases, not price increases due to inflation
Macroeconomics also deals with policy to set expectations which can drive reality