What do Canada Post, the CBC, VIA Rail, and the Atomic Energy of Canada have in common?

In economics, Okun's law, named after economist Arthur Okun who proposed the relationship in 1962 (Prachowny 1993), describes a relationship between the change in the rate of unemployment and the difference between actual and potential real GDP.

John Maynard Keynes, 1st Baron Keynes, (5 June 1883 – 21 April 1946) was a British economist whose ideas, called Keynesian economics, had a major impact on modern economic and political theory as well as on many governments' fiscal policies.

In mainstream economics, inflation is a rise in the general level of prices, as measured against some baseline of purchasing power.

In economics, a consumer price index (CPI) or retail price index (RPI) is a statistical time-series measure of a weighted average of prices of a specified set of goods and services purchased by consumers. It is a price index that tracks the prices of a specified basket of consumer goods and services, providing a measure of inflation.