Inflation causes
What causes inflation? Demand, supply, and expectations
Learn what causes inflation, how demand-pull and cost-push inflation differ, and why several forces can raise prices together.
Demand-pull inflation: spending meets a capacity limit
Imagine a town where builders can finish 100 homes a year, but buyers suddenly want 130. Until construction expands, buyers compete for limited homes. Demand-pull inflation describes that pressure across the economy. Strong spending alone is not enough: the key is spending relative to available workers, materials, and productive capacity.
Cost-push inflation: a supply problem raises costs
An energy shortage or interrupted shipping route can make production more expensive. Businesses may increase prices, accept lower margins, or reduce output. Unlike the housing example, buyers do not need to increase spending first. The Reserve Bank of Australia’s causes explainer describes these demand and supply channels.
Why expectations and policy matter
If firms expect higher future input costs, they may adjust prices earlier. Workers may seek wages that compensate for expected price growth. These responses can reinforce an initial shock, although they do not automatically create a wage-price spiral. Monetary and fiscal conditions also affect how much spending the economy supports. The IMF explains the interaction of demand, supply, and policy.
How to investigate an inflation headline
Ask which categories increased, whether the move is widespread, and which period the headline compares. One unusually expensive product is not evidence that every price is accelerating. Compare headline and core measures, then look at energy, goods, and services separately. Use the inflation clock to inspect the available rate bases rather than assigning the whole change to one event.
Does printing money always cause inflation?
Money creation can contribute when it supports spending beyond productive capacity. The timing and size of the effect depend on saving, credit, output, and policy; there is no fixed one-for-one monthly relationship.