The Cost of War: How Conflicts Affect Aggregate Demand & Aggregate Supply due to inflation

 Parizad Patel

An economy can be significantly impacted by inflation, which is a crucial economic phenomenon, especially in times of conflict. Inflation refers to the increase in the average prices of goods and services. Government expenditure usually increases dramatically when a country goes to war, which affects both aggregate supply (AS) and demand (AD). Wartime inflation can destabilise the economy by disrupting output levels, reducing consumer confidence, and increasing the price of necessities like food and raw materials. Policymakers must understand these effects to prevent and mitigate economic upheavals and preserve stability.

Figure 1

Aggregate demand (AD) refers to the amount of products and services that an economy's consumers want at different price points. Net exports, government expenditure, investment spending, and consumption spending make up its four main parts (AD = C+I+G+ (X-M)). Government spending rises dramatically during times of conflict as funds are devoted to defence infrastructure, military spending, and weaponry manufacture. The increase in expenditure shifts the AD curve to the right, as seen in Figure 1. As demonstrated in Figure 1, due to an increase in AD, price levels and real GDP increases.

 

Figure 2

Unfortunately, inflation also reduces the purchasing power of consumers, which may result in less private consumption. Rising costs may cause households to spend less on discretionary items and more on necessities. Furthermore, increased government borrowing to finance the war may result in crowding out. In this scenario, interest rates rise and private investment declines. Additionally, net exports may decrease if the war interferes with diplomatic ties or trade routes, which would cause the AD curve to move to the left and further complicate the AD dynamic as seen in Figure 2. As we can see in Figure 2, due to a decrease in AD, price levels and real GDP falls.

The public's view of the stability of the economy and their personal financial security is reflected in consumer confidence. Generally, consumer confidence decreases during wartime inflation. Uncertainty about jobs, financial security, and personal safety is brought on by war. As a precaution, households might save more, which would further reduce aggregate demand. Central banks may raise interest rates to fight inflation, which would make borrowing more costly. This slows economic growth by discouraging big consumer expenditures like homes and cars.

Aggregate Supply (AS) refers to the total amount of products and services generated in an economy). There are numerous reasons why the AS curve shifts to the left during times of war. For example, war destroys infrastructure, manufacturing, and agricultural land in countries where fighting takes place on domestic soil, which lowers AS. Disruptions in the supply chain frequently result in the scarcity of vital raw commodities including metals, oil, and agricultural items. These shortages are made worse by the loss of industries and highways, which raises production costs for companies. To stabilize the food supply, governments may occasionally implement price controls, rationing, or subsidies. These policies frequently result in inefficiencies and underground markets, even though they may momentarily reduce inflation.

Overall, economic stability is disrupted during times of conflict by inflation, which puts tremendous pressure on both aggregate supply and demand. While labour shortages, production disruptions, and rising input costs limit aggregate supply, the spike in government spending raises aggregate demand. Consumer confidence is damaged and vital industries like food production are impacted by this mismatch, which raises inflation. Effective policymakers must employ tactics like trade management, fiscal restraint, and monetary tightening to handle the economic difficulties of conflict. Prolonged inflation during a conflict can cause social unrest, economic stagnation, and long-term instability if it is not carefully controlled.

 

References:

Mannkiw, G. & Taylor, M. (2020). Economics (5th ed.). https://r1.vlereader.com/Reader?ean=9781473705791

 

About The Author:

About the author: Parizad Patel is a 2^nd year student studying International Business. She is interested in macroeconomic topics such as GDP, employment and policies.