The causes of inflation are generally categorized into three main drivers: demand-pull, cost-push, and structural factors, all of which result in a persistent increase in the average price of goods and services
1. Demand-Pull Inflation
This occurs when the demand for goods and services increases faster than the economy’s productive capacity, essentially “too much money chasing too few goods”
Key causes include:
- Increase in Money Supply: When more money is in the hands of the people, aggregate demand rises; if supply does not match this, prices are pulled up. This can also be caused by the repayment of public debt, which puts money back into the public’s hands.
- Expansionary Fiscal Policy: Increased government spending on developmental activities (like highways or bridges) increases demand for labor and materials. Additionally, tax cuts leave households with more disposable income, leading to higher consumer spending.
- Cheap Money Policy: When the central bank reduces interest rates, it encourages borrowing and investment, further boosting demand.
- Deficit Financing: To meet mounting expenses, governments may resort to printing more notes or borrowing from the public, which raises aggregate demand relative to supply.
- External Factors: Rapid overseas growth or an increase in exports reduces the domestic supply of goods, causing prices to rise locally. Depreciation of local exchange rates also makes exports more attractive to foreigners, further increasing aggregate demand.
2. Cost-Push Inflation
This is triggered by an increase in the cost of producing goods and services, leading to a decrease in aggregate supply .
Causes include:
- Rising Input Costs: Increases in the price of raw materials—particularly crude oil, which is a lifeline for transport and industry—fuel cost-push inflation
- Wage-Push: When workers demand higher wages to compensate for the rising cost of living, firms increase prices to maintain profit, creating a “wage-price spiral”
- Currency Depreciation: For example, a depreciation of the Indian Rupee makes essential imports like oil, fertilizer, and machinery more expensive for domestic consumers.
- Supply Chain Disruptions: Bottlenecks caused by lockdowns (e.g., COVID-19) or international conflicts (e.g., Ukraine-Russia war) cause scarcity and drive up prices .
- Environmental and Artificial Factors: Deficient monsoons in India significantly affect agricultural production, causing food inflation. Similarly, speculation and hoarding of commodities like tomatoes or onions create artificial scarcity.
- Increased Indirect Taxes: When the government raises taxes like GST or custom duties, the cost is passed on to the consumer via higher prices.
3. Structural and Historical Causes
- Structural Weaknesses: Often called bottleneck inflation, this prevails in developing economies due to poor infrastructure, lack of cold storage, and transportation issues. This creates a disparity where consumers pay much more than what the producers actually receive.
- Currency Debasement: In historical systems using commodity money, inflation occurred through debasement—reducing the amount of precious metal in coins while claiming they held their original value.
- Price Fluctuations: For commodity-based money, a large discovery of a precious metal (like a new silver mine) could cause the value of that currency to plunge, resulting in inflation.
To understand these causes, imagine a crowded auction: Demand-pull inflation is like more and more bidders showing up with pockets full of cash, all wanting the same item. Cost-push inflation is like the auctioneer raising the starting price because the cost of lighting the room and transporting the item has doubled. Structural inflation is like the auction being held at the top of a mountain with no road—the item is expensive not because it’s rare, but simply because it’s so difficult to get it to the bidders.