The problem during recessions, said John Maynard Keynes, was ( \(\mathrm{O} 4)\) a) inadequate aggregate supply b) inadequate aggregate demand c) too much inflation d) too much government intervention

To answer this question, we need to understand the basics of Keynes's economic theory. Keynesian economics is a macroeconomic theory that focuses on government intervention in the economy to stabilize output and employment. Keynes believed that recessions occur due to inadequate aggregate demand, which leads to decreased production and increased unemployment.

Now that we know that Keynes believed that recessions are caused by inadequate aggregate demand, let's examine the given answer choices: a) inadequate aggregate supply: This option refers to a shortage of goods and services in the economy. While this can be a part of the problem during recessions, it is not the primary issue that Keynes focused on. b) inadequate aggregate demand: This option directly refers to the lack of overall demand in the economy, which closely aligns with Keynes's theory. c) too much inflation: Inflation refers to a general increase in prices for goods and services, leading to a decrease in purchasing power. However, Keynes's primary focus was on aggregate demand insufficiency, not the inflation levels. d) too much government intervention: This option opposes Keynes's theory, as Keynes advocated for increased government intervention to stimulate demand during recessions.

Based on our understanding of Keynesian economics and examining the given answer choices, we can conclude that the correct answer is: b) inadequate aggregate demand