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ECS1601 Summary Notes 2014

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These are important revision summary notes to be studied in conjunction with the other study materials. This will save you much needed time in your studies which you can allocate to other modules. These are the kind of revision materials that helps you finish your degree quicker. It worked for me and will do so for you. Once understood your chances of passing this module is greatly enhanced.

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We simply Economics




Contents
WHAT IS MONEY? ................................................................................................................................... 6
FUNCTIONS OF MONEY........................................................................................................................... 6
Medium of exchange........................................................................................................................... 6
Money is used as a unit of account. .................................................................................................... 7
Store of value/wealth .......................................................................................................................... 7
SUPPLY OF MONEY .............................................................................................................................. 9
A right shift of money supply represents an increase of MS ..................................................... 11
CREDIT CARDS VS MONEY ................................................................................................................. 12
DEMAND FOR MONEY .......................................................................................................................... 12
Motives of holding money .................................................................................................................... 12
1. Transaction motive................................................................................................................. 12
2. Precautionary Motive – .......................................................................................................... 13
3. Speculative purposes ............................................................................................................. 13
Factors affecting Money Demand (MD)............................................................................................ 13
Equilibrium in money market ............................................................................................................ 15
Monetary Policy ................................................................................................................................ 16
Impact of expansionary MP (increase of MS) ............................................................................... 16
SELF ASSESSMENT QUESTIONS ............................................................................................................. 17
MEASURING PERFOMANCE OF THE ECONOMY ................................................................................... 19
The Variables ..................................................................................................................................... 20
Defining GDP ..................................................................................................................................... 20
Ways of measuring GDP .................................................................................................................... 20
Expenditure Approach ................................................................................................................... 21
Consumption Approach ................................................................................................................. 21
Investment ..................................................................................................................................... 21
Stocks vs. Flows ............................................................................................................................. 22
Government Spending ................................................................................................................... 22
Exports and Imports ...................................................................................................................... 22
Value added....................................................................................................................................... 23

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, We simply Economics




Illustration...................................................................................................................................... 23
Final goods, value added, and GDP ............................................................................................... 24
Real vs. nominal GDP ..................................................................................................................... 24
The price level................................................................................................................................ 25
GDP Deflator .................................................................................................................................. 25
Consumer Price Index (CPI) ........................................................................................................... 25
Measuring Inflation ....................................................................................................................... 27
CPI vs. GDP Deflator ...................................................................................................................... 27
INCOME DETERMINATION:KEYNISIAN MODEL .................................................................................... 29
Assumptions ...................................................................................................................................... 29
Differences from the Classical Model .......................................................................................... 29
T h e Keynesian Model w/out Government ............................................................................... 29
T h e Keynesian Model w / Government ................................................................................... 39
SELF ASSESSMENT QUESTIONS ......................................................................................................... 43
AGGREAGATE DEMAND / AGGEREGATE SUPPLY MODEL .................................................................... 44
FACTORS THAT SHIFT AD ................................................................................................................... 44
SHIFTS IN AGGREGATE SUPPLY ......................................................................................................... 47
What will change LRAS? Same factors that shift the PPF ................................................................. 47
CHANGES IN THE SRAS ...................................................................................................................... 48
UNANTICIPATED INCREASES IN SRAS ................................................................................................ 49
UNANTICIPATED DECREASES IN SRAS ............................................................................................... 49
UNEMPLOYMENT, BUSINESS CYCLES AND INFLATION ............................ Error! Bookmark not defined.
The Business Cycle ............................................................................................................................ 51
III. Unemployment ...................................................................................................................... 54
Seasonal Unemployment .................................................................................................................. 55
Frictional Unemployment ................................................................................................................. 55
Structural Unemployment ................................................................................................................ 56
Cyclical Unemployment ........................................................................................................................ 56
Inflation ................................................................................................................................................. 58
Measuring Inflation .......................................................................... Error! Bookmark not defined.


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, We simply Economics




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, We simply Economics




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