Every month, Statistics Canada publishes Consumer Price Index (CPI) which measures the change in the cost of a fixed basket of goods and services from one time period to another. Many union-management contracts tie the salary growth of their members to CPI growth. Does this help the salary earners maintain a fixed level of "well-being"? Explain (Note: For simplicity, consider a typical consumer facing a choice between housing and other goods. Drawing a diagram will help answer this question)