How Lenders Make Money When Mortgage Rates Are Lower Than Inflation

The Mystery of Lender Profits in a Low Interest Rate Environment

It's a common curiosity among homeowners: why do lenders still make a profit when mortgage interest rates are lower than the historic average inflation rate? This article will unravel the intricate mechanisms behind how lenders generate profits, even in times of low inflation.

Fractional Reserve Banking and Lender Profits

The concept of fractional reserve banking is one key to understanding how lenders make significant profits despite low interest rates. This practice allows banks to lend out a significant portion of the deposits they receive. For instance, a bank might hold only 10% of its deposits in reserve, lending out the remaining 90%. This means the same sum of money can be lent to multiple borrowers, increasing the potential for profit.

Example: If a bank has $10,000 in deposits and a reserve ratio of 10%, it will keep $1,000 in reserve and lend out $9,000. If this $9,000 is then deposited in another bank, the process repeats, leading to a maximal lending capacity of $100,000 from the original $10,000 in deposits, assuming the same reserve ratio. This practice allows banks to generate substantial revenue and profits even when interest rates are low.

How Lenders Transfer Risk

Lenders don't need to beat the inflation rate on individual loans to make a profit. Instead, they need to beat the average inflation rate on their portfolio of loans. This is a clever strategy that allows them to maintain profitability even when interest rates are low.

Example: Consider a scenario where the average inflation rate is 3.68% over a long period, including high and low inflation periods. A lender who lends money for a portfolio of home mortgages charges an average interest rate of 5%, which may be higher than the current inflation rate of 2.41%. By securing a loan with a higher interest rate, the lender ensures a profit, even if the overall inflation rate is lower.

The Role of Mortgage-Backed Securities (MBS)

Lenders sell the mortgages they originate to investors, primarily through mortgage-backed securities (MBS). These securities are essentially bonds backed by a pool of mortgages.

Fannie Mae and Freddie Mac are well-known buyers of mortgages, pooling them to create MBS. These securities are sold in the open market, similar to stocks and other securities, providing liquidity for the investment community. MBS are attractive to investors because they offer a relatively high yield compared to traditional savings accounts, CDs, and other investments, while still maintaining very low risk.

Example: If a bank sells a portfolio of mortgages to Freddie Mac for $10 million, Freddie Mac may issue MBS worth $10 million, which are then sold to investors. The investors receive regular payments based on the income from the underlying mortgages, providing them with a stable and predictable income stream, which is attractive in a low-interest-rate environment.

Why Safety Matters in Lending

Many people are drawn to the safety and liquidity provided by certificate of deposit (CD) accounts. However, they often misunderstand the underlying risk. CDs offer a fixed interest rate for a specified period, but the purchasing power of the principal when it is returned may be lower if inflation has occurred during the term. This is why safety is not the same as a guaranteed return.

Example: If you invest $10,000 in a CD at a 1.5% interest rate for one year, and inflation is 2.41%, the purchasing power of that $10,000 at the end of the year will be equivalent to only $9,759, a loss in real terms.

Understanding the Inflation-Interest Rate Relationship

The relationship between inflation and mortgage rates is complex, but it generally holds that higher inflation corresponds to higher mortgage rates. For instance, in 1980, when inflation was 13.55%, mortgage rates were around 15%, which far exceeded the inflation rate of the time.

Example: Over the past 60 years, the average inflation rate has been 3.68%, including high inflation periods like 1974-1981 when it often exceeded 11%. Despite these high inflation rates, mortgage rates have historically remained higher, reflecting the need to protect lenders from the erosion of purchasing power.

Conclusion

Understanding how lenders make money in a low inflation environment is critical for homeowners and investors alike. Fractional reserve banking, the role of MBS, and the importance of safety in investment are key factors that ensure lenders can maintain profitability even when interest rates are low. This knowledge empowers individuals to make more informed decisions and navigate the complexities of the financial world with greater confidence.

Keywords: mortgage, inflation, lenders, mortgage rates, mortgage-backed securities.