1. The problem of externalities

Irrational behavior

The consequence of the mortgage bubble – rise in mortgage delinquency.

In some asset markets, we have seen volatile prices exacerbated by irrational exuberance. Consumers have often been caught up in a market frenzy – hoping that rising prices will make them richer – and expecting prices to keep rising. We can see this in issues such as tulip mania, the South Sea Bubble, railway mania, and the recent property bubbles.

Macroeconomic problems

Mass unemployment 1933

Unemployment has been a major economic problem in advanced economies. One of the principal causes of unemployment is swings in the business cycle. A fall in demand for goods during a recession, causes people to be laid off. Because of the depressed state of the economy, there is an imbalance between demand and supply of workers.

Unemployment can also be caused by rapid changes in labour markets, for examples, unskilled workers unable to gain employment in a high tech economy. Unemployment is a problem because it is a waste of resources, but more importantly, it leads to very high personal costs, such as stress, alienation, low income and feelings of failure.

Recession

A recession is a period of negative economic growth – a decline in the size of the economy. It exacerbates problems of inequality and unemployment. A problem of recession is that it can create a negative spiral. When demand falls, firms lay off workers. The unemployed have less money to spend causing further falls in demand.

In the great depression, unemployment rose to over 20% – the unemployed also had little support and relied on soup kitchens.

Inflation

High inflation can be a serious problem if prices rise faster than wages and nominal interest rates. In periods of rapidly rising prices, people with savings will see a decline in their real wealth. If prices rise faster than wages, then people’s spending power will decline. Also, rapidly rising prices creates confusion and uncertainty and can cause firms to cut back on investment and spending.

Countries which have experienced hyperinflation, have seen it as a very traumatic period because all the economic certainty is washed away, leaving people without any certainty. Hyper inflation can cause not just economic turmoil but political turmoil as people lose confidence in the economic situation of the economy.