Purchasing power refers to the quantity of goods or services $20 can buy today. Inflation erodes purchasing power, making $10 buy fewer loaves of bread over 10 years. Investing in S&P 500 funds can ...
Jessica Migala has been a health, fitness, and nutrition writer for almost 15 years. She has contributed to more than 40 print and digital publications, including Health and Runner's World. Jessica ...
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