Federal Reserve Economic Data

The FRED® Blog

A marginal look at bank margins

How have banks performed over recent years in this environment of very low interest rates? Banking can be complex, so it’s difficult to pinpoint exactly how low interest rates affect banks’ bottom lines. But there’s a simple measure in FRED that we can examine: the net interest margin. It calculates the ratio of a bank’s net income from assets to the level of those assets. (Put another way, it’s the interest banks earn on investments minus the interest they pay to their lenders and depositors divided by the total level of their interest-earning assets.) Of course, the devil is in the details, and the note on the FRED series page captures some of those details.

Did the lending rate decline less than the cost of funds? Or are margins being squeezed by the low interest rates? The graph seems to imply the latter, but it also shows a general tendency toward lower margins over the span of two decades, which hints that more may be at play here. Maybe widespread use of computers in the management of deposits and credits allowed banks to reduce costs and thus margins. Maybe there’s been increased competition. Maybe something else entirely…

How this graph was created: Search for “net interest margin” and add it to the graph.

Suggested by Christian Zimmermann.

View on FRED, series used in this post: USNIM

Sources of household income

The National Income and Product Accounts (NIPA) provide a wealth of economic insights by separating data into different classes, one of them being households. FRED makes it especially easy to examine the sources of household income by providing release tables. Here, we used the table for personal income to create the graph above.

Probably to no one’s surprise, wages and salaries make up the largest share of household income. But this share has been steadily shrinking, from 63% in 1947 to 49% today. Proprietors’ income (the income of the self-employed) has also shrunk, from 19% down to 9%.

Obviously, other shares must be growing. Capital income has grown from 8% to 14%. Supplements to wages and salaries (benefits for health, retirement, vacation, etc.) have grown from 5% to 12%. And transfers from the government have grown the most, from 5% to 17%.

How this graph was created: From the Personal Income release table, select these five series and click “Add to Graph.” In the “Edit Graph” tab, go to the “Format” tab to select graph type “Area” and stacking type “Percent.” FYI: FRED lets you change the order of the series as you wish. [NOTE: This stacked area graph displays each of the series as a percent of the total of all five series shown here. The original units of the series are billions of dollars.]

Suggested by Christian Zimmermann.

View on FRED, series used in this post: A038RC1Q027SBEA, A577RC1Q027SBEA, PROPINC, W210RC1Q027SBEA, WASCUR

Government transfers to households: From 1947 to 1966 to now

One thing governments do is redistribute wealth from some citizens to others. Some of these transfers are explicitly captured in the system of national accounts, and the graph includes the five largest categories. It’s striking how the composition of these transfers has changed. The data start in 1947, so it’s no surprise the support of WWII veterans took the lion’s share for the first years. The number of veterans eligible for benefits declined as social security progressively expanded. In 1966, Medicaid and Medicare were introduced, and we see their shares slowly increasing. Today, social security benefits claim the largest share of government transfers: 40%. Medicare claims 29%,  Medicaid claims 25%, unemployment insurance benefits claim 1%, and veterans’ benefits claim 4%.

How this graph was created: These national accounts data can be found in the personal income release table. Check these five series and click on “Add to Graph.” From the “Edit Graph” panel, go to the “Format” tab to choose “Area” as the type of graph and “Percent” as the type of stacking for the graph. [NOTE: This stacked area graph displays each of the series as a percent of the total of all five series shown here. As the y-axis label indicates, the original units of the series are billions of dollars.]

Suggested by Christian Zimmermann.

View on FRED, series used in this post: W729RC1Q027SBEA, W823RC1Q027SBEA, W824RC1Q027SBEA, W825RC1Q027SBEA, W826RC1Q027SBEA


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