Прочитайте текст и выполните задания.
Hyperinflation
1. Inflation is a sustained increase in the aggregate price level. Economists generally reserve the term hyperinflation to describe episodes where the monthly inflation rate is greater than 50 per cent.
2. Hyperinflations are largely a twentieth-century phenomenon. The most widely studied hyperinflation occurred in Germany after World War I. The ratio of the German price index in November 1923 to the price index in August 1922 – just fifteen months earlier – was 1.02 × 1010. This huge number amounts to a monthly inflation rate of 322 per cent.
3. Hyperinflations are caused by extremely rapid growth in the supply of «paper» money. They occur when the monetary and fiscal authorities of a nation regularly issue large quantities of money to pay for a large stream of government expenditures. In effect, inflation is a form of taxation where the government gains at the expense of those who hold money whose value is declining. Hyperinflations are, therefore, very large taxation schemes.
Определите основную идею текста.
Hyperinflation is an economic phenomenon of the 20th century.
Hyperinflations were often used by 20th century governments to get money from enterprises.
Hyperinflation is a phenomenon widely studied by economists.
Hyperinflations were often used by 20th century governments as taxation schemes.