2.3.5
Defining Inflation
Inflation, Deflation and Disinflation
Inflation, Deflation and Disinflation
You need to know the definitions for inflation, deflation and disinflation.


Inflation
Inflation
- Inflation is defined as a persistent increase in the general price level, over a given period of time.
- Prices are going up.
- Inflation reduces the purchasing power of the Dollar. E.g. $1 will buy you less goods and services in 12 months' time than it will now, if prices in the economy are going up.


Deflation
Deflation
- Deflation is defined as a persistent decrease in the general price level, over a given period of time.
- Prices are going down.


Disinflation
Disinflation
- Disinflation is a decrease in the rate of increases of prices – it is when inflation falls but remains positive.
- If the inflation rate falls from 5% to 2%, prices are still rising, just at a slower pace.
- Prices are still going up!
Hyperinflation
Hyperinflation
- An outburst of high inflation that often occurs (although not exclusively) when economies shift from a controlled economy to a market-oriented economy.
Base year
Base year
- An arbitrary year whose value as an index number economists define as 100; inflation from the base year to other years can easily be seen by comparing the index number in the other year to the index number in the base year.
- For example, 100; so, if the index number for a year is 105, then there has been exactly 5% inflation between that year and the base year
1Microeconomics
1.1Competitive Markets: Demand & Suply
1.2Elasticity
1.3Government Intervention
1.4Market Failure
1.4.1Types of Market Failure
1.4.2Introduction to Externalities
1.4.3Negative Externalities
1.4.4Policy for Negative Externalities
1.4.5Positive Externalities
1.4.6The Deadweight Welfare Loss of Externalities
1.4.7Case Study - The Externalities of Education
1.4.8Public Goods & the Free-Rider Problem
1.4.9Asymmetric Information
1.4.10End of Topic Test - Market Failure
1.4.11Application Questions - Market Failure
1.5HL: Theory of the Firm & Market Structures
2Macroeconomics
2.1The Level of Overall Economic Activity
2.2Aggregate Demand & Aggregate Supply
2.2.1The Aggregate Demand Curve
2.2.2Components of Aggregate Demand
2.2.3Shape of the Aggregate Demand Curve
2.2.4Shifts in Aggregate Demand
2.2.5IB Multiple Choice - Aggregate Demand
2.2.6Short & Long-Run Aggregate Supply
2.2.7Alternative Models of LRAS
2.2.8Equilibrium in the AD-AS Model
2.2.9Output Gaps & the AD-AS Model
2.3Macroeconomic Objectives
2.3.1Introduction to Unemployment
2.3.2Limitations of Unemployment
2.3.3Types of Unemployment
2.3.4Causes & Impact of Unemployment
2.3.5Defining Inflation
2.3.6Measuring Inflation
2.3.7Use of Index Numbers
2.3.8The Consumer Price Index
2.3.9Consequences of Inflation
2.3.10Causes of Inflation
2.3.11Inflation & Unemployment Tradeoff
2.3.12The Short-Run Phillips Curve
2.3.13The Long-Run Phillips Curve
2.4Economic Growth, Poverty & Inequality
2.5Fiscal Policy
2.6Monetary Policy
2.7Supply-Side Policies
3The Global Economy
3.1International Trade
3.2Exchange Rates
3.3The Balance of Payments
3.4Economic Integration
3.5Terms of Trade
3.6Economic Development
3.7The Role of Domestic & International Factors
3.8The Role of International Trade
3.9The Role of Foreign Aid
Jump to other topics
1Microeconomics
1.1Competitive Markets: Demand & Suply
1.2Elasticity
1.3Government Intervention
1.4Market Failure
1.4.1Types of Market Failure
1.4.2Introduction to Externalities
1.4.3Negative Externalities
1.4.4Policy for Negative Externalities
1.4.5Positive Externalities
1.4.6The Deadweight Welfare Loss of Externalities
1.4.7Case Study - The Externalities of Education
1.4.8Public Goods & the Free-Rider Problem
1.4.9Asymmetric Information
1.4.10End of Topic Test - Market Failure
1.4.11Application Questions - Market Failure
1.5HL: Theory of the Firm & Market Structures
2Macroeconomics
2.1The Level of Overall Economic Activity
2.2Aggregate Demand & Aggregate Supply
2.2.1The Aggregate Demand Curve
2.2.2Components of Aggregate Demand
2.2.3Shape of the Aggregate Demand Curve
2.2.4Shifts in Aggregate Demand
2.2.5IB Multiple Choice - Aggregate Demand
2.2.6Short & Long-Run Aggregate Supply
2.2.7Alternative Models of LRAS
2.2.8Equilibrium in the AD-AS Model
2.2.9Output Gaps & the AD-AS Model
2.3Macroeconomic Objectives
2.3.1Introduction to Unemployment
2.3.2Limitations of Unemployment
2.3.3Types of Unemployment
2.3.4Causes & Impact of Unemployment
2.3.5Defining Inflation
2.3.6Measuring Inflation
2.3.7Use of Index Numbers
2.3.8The Consumer Price Index
2.3.9Consequences of Inflation
2.3.10Causes of Inflation
2.3.11Inflation & Unemployment Tradeoff
2.3.12The Short-Run Phillips Curve
2.3.13The Long-Run Phillips Curve
2.4Economic Growth, Poverty & Inequality
2.5Fiscal Policy
2.6Monetary Policy
2.7Supply-Side Policies
3The Global Economy
3.1International Trade
3.2Exchange Rates
3.3The Balance of Payments
3.4Economic Integration
3.5Terms of Trade
3.6Economic Development
3.7The Role of Domestic & International Factors
3.8The Role of International Trade
3.9The Role of Foreign Aid
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