ఆర్థిక వ్యవస్థలో ఒకే వస్తువు ధరను కాకుండా, అనేక వస్తువులు మరియు సేవల ధరల యొక్క సగటు స్థితిని General Price Level – సాధారణ ధరల స్థాయి అంటారు. Price Level ఎలా నిర్ణయించబడుతుంది? Money Supply పెరిగితే ధరలకు ఏమవుతుంది? Money యొక్క purchasing power ఎలా మారుతుంది? అనే అంశాలను Determination of Price Levelలో అధ్యయనం చేస్తాము.
Individual Price → ఒక particular good/service ధర
General Price Level → Economyలో goods & services ధరల overall level
| Price | Price Level |
|---|---|
| ఒక particular commodity ధర | Economyలో overall prices యొక్క general level |
| Example: Rice ₹60/kg | Overall consumer prices have risen |
| Micro conceptగా ఉపయోగించవచ్చు | Primarily macroeconomic concept |
ఒక commodity ధర పెరగడం మాత్రమే general price level పెరిగింది అని నిరూపించదు.
General Price Level అనేది economyలో selected basket of goods and services prices యొక్క broad average movementను సూచిస్తుంది.
దీనిని practicalగా price indices ద్వారా measure చేస్తారు.
✓ Consumer Price Index – CPI
✓ Wholesale Price Index – WPI
✓ GDP Deflator
Price Index ↓ → General Price Level ↓
Money యొక్క value అంటే ఒక unit of moneyతో ఎంత goods and services కొనగలమో తెలిపే Purchasing Power of Money.
General price level మరియు value of money మధ్య inverse relationship ఉంటుంది.
Prices ↓ → Purchasing Power of Money ↑
ఒక commodity ధర ₹10 అయితే ₹100తో 10 units కొనవచ్చు. ధర ₹20కి పెరిగితే అదే ₹100తో 5 units మాత్రమే కొనవచ్చు.
Price = ₹20 → ₹100 buys 5 units
Price Level ↑ → Money Purchasing Power ↓
Base year price index = 100గా తీసుకుంటే, approximate purchasing-power indexను ఇలా చూపవచ్చు:
Example: Price Index = 125.
అంటే base-year purchasing powerతో పోలిస్తే money purchasing-power index 80గా ఉంటుంది.
Price level determinationను వివిధ economic approaches ద్వారా explain చేశారు. Exam point of viewలో మూడు ముఖ్యమైన approaches:
2. Cambridge Cash-Balance Approach
3. Aggregate Demand – Aggregate Supply Approach
Quantity Theory of Money ప్రకారం, other relevant factors constantగా ఉన్నప్పుడు, quantity of moneyలో changes general price levelను ప్రభావితం చేస్తాయి.
More Money chasing the same volume of goods → Prices tend to rise.
American economist Irving Fisher Quantity Theoryను Equation of Exchange ద్వారా వివరించాడు.
V = Velocity of Circulation of Money
P = General Price Level
T = Volume of Transactions
M × V = P × T
Money Side = Transaction Value Side
During a given period, total money expenditure is represented by M × V. The money value of transactions is represented by P × T.
Therefore:
From:
If V and T remain constant:
Money Supply ↑ → Price Level ↑
Money Supply ↓ → Price Level ↓
Suppose initially:
V = 5
T = 500
Now M doubles from 100 to 200 while V and T remain constant:
This result follows only under the stated assumptions.
Velocity of money means the average number of times a unit of money is used for transactions during a given period.
T represents the volume of transactions in Fisher's original equation.
Other things constant:
T ↓ → P ↑ tendency
Some textbook presentations distinguish currency money and bank/deposit money:
V = Velocity of Currency Money
M′ = Bank / Deposit Money
V′ = Velocity of Bank / Deposit Money
P = Price Level
T = Transactions
2. Volume of transactions/output is treated as given at full employment in the classical version.
3. Money supply is treated as an important independent determinant.
4. Institutional/payment habits affecting velocity are assumed stable.
5. The simple proportional result assumes changes in money do not proportionately change real output.
2. Output and transactions can change.
3. Economy may operate below full employment.
4. Money demand can change.
5. Interest rates and financial conditions matter.
6. Money supply changes may affect output as well as prices.
7. The proportional M → P relationship need not hold mechanically in the short run.
Cambridge economists shifted attention from how rapidly money is spent to why people wish to hold money balances.
Cambridge → Money as Store of Value / Cash Balance
A common Cambridge cash-balance equation is:
k = Fraction of nominal income people wish to hold as money
P = General Price Level
Y = Real Income / Real Output
Therefore:
k indicates the proportion of nominal income that people desire to hold in the form of money balances.
V → How fast money circulates
k → How much money people want to keep
In a simplified framework:
Low desire to hold cash → k ↓ → Velocity ↑
| Fisher | Cambridge |
|---|---|
| Transaction approach | Cash-balance approach |
| MV = PT | M = kPY |
| Focus on spending/circulation | Focus on demand to hold money |
| Velocity V important | Cash-balance ratio k important |
| Money mainly viewed through exchange | Money holding receives greater emphasis |
Suppose:
k = 0.25
Y = 1,000 units
Modern macroeconomic analysis explains price level through interaction between Aggregate Demand (AD) and Aggregate Supply (AS).
Aggregate Supply → Economy's total production/output response at different price levels
In an open economy:
I = Investment
G = Government Expenditure
X = Exports
M = Imports
If aggregate demand rises faster than the economy's ability to produce, especially near capacity/full employment, the general price level tends to rise.
A negative supply shock can raise production costs and reduce the quantity of output firms are willing or able to supply at previous conditions.
1. Money Supply
2. Velocity / Money Demand
3. Aggregate Demand
4. Aggregate Supply
5. Real Output
6. Credit Conditions
7. Interest Rates
8. Government Expenditure and Taxation
9. Production Costs
10. Wages
11. Commodity and Energy Prices
12. Exchange Rate
13. Supply Shocks
14. Expectations
A rise in money supply need not always produce an immediate equal percentage increase in prices.
Demand ↑ → Output and Employment may initially ↑ substantially
Further demand ↑ → Stronger Price-Level pressure
Classical Quantity Theory → Strong M–P relationship under restrictive assumptions.
Modern analysis → Money can affect interest rates, demand, output and prices through several channels.
Suppose price index changes from 100 to 125.
Thus purchasing power falls to 80% of its base-year level.
Given:
V = 5
T = 1,000 units
Given:
T = 500
V = 5
Given:
P = 5
T = 400
Trap 2: Price Level ↑ → Purchasing Power ↓.
Trap 3: Fisher → MV = PT.
Trap 4: Cambridge → M = kPY.
Trap 5: Fisher emphasizes transactions/velocity; Cambridge emphasizes cash balances/money demand.
Trap 6: k and V are inversely related in the simplified framework.
Trap 7: M doubles → P doubles only when the required assumptions such as V and T being constant hold.
Trap 8: Money Supply increase does not mechanically imply an equal immediate price increase in every real-world situation.
Trap 9: AD increase near capacity can increase price pressure.
Trap 10: Negative supply shock can increase prices while reducing output.
A) Price of one commodity
B) Overall level of prices
C) Wage of one worker
D) Interest on one loan
A) Directly related to price level
B) Inversely related to price level
C) Always constant
D) Equal to interest rate
A) Rises
B) Falls
C) Remains unchanged
D) Doubles
A) Irving Fisher
B) Adam Smith only
C) Alfred Marshall only
D) Schumpeter
A) MV = PT
B) C = a+bY
C) S = Y−C
D) MR = MC
A) Money Supply
B) Marginal Cost
C) Imports
D) Multiplier
A) Velocity of Money
B) Value Added
C) Variable Cost
D) Volume of Imports
A) Price Level
B) Profit
C) Population
D) Production cost only
A) Volume of Transactions
B) Tax only
C) Time Deposit
D) Total Saving
A) P = MV/T
B) P = T/MV
C) P = M/TV
D) P = V/MT
A) Increase P
B) Decrease P
C) Leave P necessarily zero
D) Eliminate transactions
A) Halves
B) Doubles
C) Remains unchanged
D) Becomes zero
A) Cash-Balance Approach
B) Cost Approach
C) Production Approach
D) Fiscal Approach
A) M = kPY
B) MV = PT only
C) C = a+bY
D) I = S+r
A) Desired cash-balance proportion
B) Capital-output ratio only
C) Tax rate
D) Inflation rate
A) k = V
B) k = 1/V
C) k = V²
D) No relationship
A) Transactions and velocity
B) Government budget only
C) Taxation only
D) Labour supply only
A) Demand to hold money
B) Only government debt
C) Only exports
D) Only wages
A) Fall
B) Rise
C) Remain exactly equal
D) Become infinite
A) Rises
B) Falls
C) Remains constant
D) Becomes zero
A) 1
B) 2
C) 5
D) 10
A) 1
B) 2
C) 4
D) 5
A) 1
B) 2
C) 4
D) 5
A) 100
B) 200
C) 400
D) 500
A) 2
B) 5
C) 10
D) 20
A) 80
B) 100
C) 125
D) 150
A) 25
B) 50
C) 100
D) 200
A) 1
B) 2
C) 4
D) 5
A) 2
B) 3
C) 4
D) 6
A) 5
B) 10
C) 15
D) 20
A) AD and AS
B) Only exports
C) Only imports
D) Only taxes
A) C+I+G+(X−M)
B) C+S only
C) T−G
D) M×V
A) Increase price pressure
B) Guarantee falling prices
C) Reduce demand automatically
D) Eliminate inflation
A) Higher prices and lower output
B) Lower prices and higher output necessarily
C) No effect
D) Zero demand
A) Consumption
B) Investment
C) Government spending
D) All of the above
A) Production costs
B) Productivity
C) Input prices
D) All of the above
A) Adverse supply pressure
B) Automatic monetary expansion only
C) Increase in real supply necessarily
D) No price effect
A) Price indices
B) Population census only
C) Interest rate only
D) Fiscal deficit only
A) Price index
B) Money multiplier
C) Tax rate
D) Bank reserve
A) General price measurement of domestically produced final output
B) Bank reserves
C) Credit rationing
D) Cash balance ratio only
A) Price level and value of money move in the same direction
B) Price level and purchasing power move inversely
C) Purchasing power never changes
D) Price index cannot exceed 100
A) Doubling money supply always immediately doubles prices
B) Money supply can affect aggregate demand
C) Output can change
D) Velocity can change
A) k
B) T only
C) Tax rate
D) Fiscal deficit
A) Velocity of circulation
B) Tax revenue
C) Government deficit
D) Marginal propensity to consume
A) Rises
B) Falls
C) Becomes zero
D) Must equal price level
A) Assertion and Reason are true; Reason correctly explains Assertion.
B) Both are true; Reason is not the correct explanation.
C) Assertion is true; Reason is false.
D) Assertion is false; Reason is true.
Reason: The same amount of money can purchase fewer goods and services.
Reason: P = MV/T.
Reason: It examines the proportion of income people wish to hold as money.
Reason: Payment habits and money-holding behaviour can change.
Reason: It may increase costs or restrict aggregate supply.
A) Purchasing power of money
B) Fiscal deficit
C) Money multiplier
D) Interest rate
A) Total money expenditure in the Fisher framework
B) Total tax revenue
C) National debt
D) Real output alone
A) Money value of transactions
B) Public tax only
C) Private transfer only
D) Profit tax
A) Falls
B) Rises
C) Doubles
D) Is unchanged
A) Upward price pressure
B) Falling prices necessarily
C) Zero velocity
D) Zero demand
A) Output and employment
B) Prices only and never output
C) Taxes only
D) Imports only
A) Price pressure
B) Unemployment necessarily
C) Deflation necessarily
D) Cash balances necessarily
A) Cambridge Cash-Balance Approach
B) Fisher Transaction Approach
C) Fiscal Policy
D) Accelerator Theory
A) Cambridge Equation
B) Fisher's original MV=PT directly
C) Consumption Function
D) Saving Function
A) Both demand and supply conditions
B) Money supply alone in every circumstance
C) Taxes alone
D) Wages alone
MV = PT
Price Level
P = MV/T
Money Supply
M = PT/V
Velocity
V = PT/M
Cambridge Equation
M = kPY
Cambridge Price Level
P = M/kY
k–V Relationship
k = 1/V
Value of Money
∝ 1/P
Aggregate Demand
AD = C + I + G + (X − M)
| Concept | Remember |
|---|---|
| General Price Level | Overall level of prices |
| Value of Money | Purchasing Power |
| P ↑ | Purchasing Power ↓ |
| P ↓ | Purchasing Power ↑ |
| Fisher | Quantity / Transaction Approach |
| Fisher Equation | MV = PT |
| M | Money Supply |
| V | Velocity |
| P | Price Level |
| T | Transactions |
| Cambridge | Cash-Balance Approach |
| Cambridge Equation | M = kPY |
| k | Cash-balance proportion |
| k and V | Inverse relationship in simple model |
| AD = AS | Macroeconomic equilibrium |
| AD ↑ near capacity | Price pressure ↑ |
| Adverse Supply Shock | Prices ↑, Output may ↓ |
Price Level → Overall prices
Value of Money → Purchasing Power
P ↑ → Value of Money ↓
P ↓ → Value of Money ↑
Irving Fisher → Quantity Theory / Transaction Approach
Fisher Equation → MV = PT
P → MV/T
M ↑ with V,T constant → P ↑
V ↑ with M,T constant → P ↑
T ↑ with M,V constant → P ↓
Cambridge → Cash-Balance Approach
Cambridge Equation → M = kPY
k ↑ → V ↓
k ↓ → V ↑
AD → C + I + G + (X−M)
AD ↑ near capacity → Price Pressure ↑
Adverse Supply Shock → Price ↑ and Output ↓ tendency
Price Level → Value of Money → Purchasing Power → Quantity Theory → Irving Fisher → MV = PT → Money Supply → Velocity → Cambridge Approach → M = kPY → k and V → Aggregate Demand → Aggregate Supply → Equilibrium Price Level
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