Which of the following theories of trade cycle was propounded by W.S. Jevons? A) Monetary Theory B) Sunspot Theory C) Saving Investment Theory C) Innovation Theory Related MCQs: A shopkeeper raises the price of a cycle by 5 percent above the market price and charges 12 percent sales tax on the market price. As a result, a customer has to pay Rs. 4680 for the cycle. What is the market price of the cycle? The classical and neo-classical theories of consumption and firm behavior are based on? Research conducted for testing and applying theories is called? Learning theories explain attachment of Infants to their parents in items of: