Final answer:
The concept that only money and bonds can be used as a store of wealth is discussed in the chapter on money and banking, particularly in the section that defines the functions of money, which includes the store of value function.
Step-by-step explanation:
The concept that only money and bonds can be used as a store of wealth is covered in the chapter on money and banking. Specifically, this topic is addressed in the section titled 'Defining Money by Its Functions'. Money serves several functions in an economy; it acts as a medium of exchange, a unit of account, and a store of value. The section also contrasts commodity money and fiat money, providing a deeper understanding of what economists mean by money and highlighting its interrelationship with the banking system. A comprehensive discussion of these concepts can be found in the chapters dealing with Monetary and Fiscal Policy, which also explain the role of the banking system in the broader context of monetary policy and financial regulation.