PDF Summary:The Secrets of Economic Indicators, by Bernard Baumohl

Economic indicators shape everything from investment strategies to government policy decisions, yet understanding them can feel overwhelming. In The Secrets of Economic Indicators, Bernard Baumohl breaks down how to interpret the data that drives financial markets and business decisions.

Baumohl explains the fundamentals of economic measurement, including the difference between nominal and real values, the importance of seasonal adjustments, and why GDP serves as the most comprehensive gauge of economic health. He walks readers through key supply-side indicators like productivity and labor costs, explores how foreign capital flows affect the U.S. economy, and describes the five phases of the economic cycle. This guide provides the tools to understand how economic data is collected, refined, and released—and how these indicators can signal upcoming shifts in the economy.

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GDP as an Inclusive Economic Measure

According to Baumohl, GDP is an all-encompassing gauge of economic activity. It represents the total worth of all products and services created in the US, including those that are sold, exported, or added to inventory. GDP is the key economic measure because it best captures the economy’s ups and downs. Forecasters use it to project the economy's future, CEOs to make business plans and hiring decisions, money managers to refine investment strategies, and government officials to evaluate how well their policies are working.

(Shortform note: Since Baumohl wrote, the OECD has adopted a “beyond GDP” dashboard of well-being indicators, based on the work of Nobel laureate Joseph Stiglitz and others. This means that GDP is no longer the single master gauge for the decisions Baumohl lists, but one of several core indicators. The OECD’s approach reflects a growing consensus that GDP alone can’t capture the full picture of economic health and social progress.)

Key Indicators, the Economic Cycle, and Forecasting

Baumohl explains that there are five phases in an economic cycle: peak, recession, trough, recovery, and expansion. The peak is when economic output reaches its maximum before declining, while the recession is the period when the economy shrinks. The trough is the nadir of the recession. The recovery occurs when the economy stops shrinking and starts growing again, and the expansion is when it grows past its previous high point.

(Shortform note: The idea of the economic cycle as a series of phases emerged in the 20th century as economists sought to understand the causes and patterns of economic fluctuations. Early work by economists like Wesley Mitchell and Arthur Burns at the National Bureau of Economic Research (NBER) established the practice of identifying and dating business cycle turning points. Later economists, such as Victor Zarnowitz in his book Business Cycles, built on this work to provide a more detailed narrative of economic downturns and subsequent revivals.)

The economic cycle is naturally shaped by people's behaviors as they make choices daily about purchasing, spending, and investing. The economy experiences fluctuations. Sometimes, there's significant growth: people's incomes increase, they spend more, and businesses recruit and develop. Other times, growth is barely perceptible, with decreased consumer shopping and minimal business investments. In the most severe instance, the economy contracts, which is what occurs in a recession. Over time, economic slumps yield to new periods of growth. The fluctuation from prosperous periods to difficult ones and back again is what we refer to as a business cycle.

Exceptions to the Rule

While the economic cycle is often shaped by people's purchasing, spending, and investing decisions, there are exceptions. For example, during the COVID-19 pandemic, the economic cycle was driven more by government-mandated shutdowns than by people's everyday choices. When businesses were forced to close and people were required to stay home, the economy contracted rapidly. This wasn't because people suddenly decided to stop spending or investing, but because they were legally unable to participate in the economy as usual. In this case, the economic cycle was shaped more by external factors than by people's everyday decisions.

Next, we’ll look at some important supply-side and financial condition signals, and see how they can affect financial markets.

Indicator Deep Dives

Supply-Side and Financial Condition Indicators

Baumohl identifies output and labor expenses as key supply-side indicators. Productivity is the amount produced in an hour of work, while labor costs are the overall hourly pay, which includes salaries, wages, commissions, bonuses, benefits, and stock options. Unit labor costs refer to the expenses associated with producing one unit of a product. Labor expenses are the largest production cost, accounting for over two-thirds of a business's total costs.

(Shortform note: These statements are true for labor-intensive businesses, but not for capital-intensive businesses. In capital-intensive businesses, the largest production cost is the purchase and maintenance of equipment and structures, and labor expenses are a much smaller portion of total costs. For example, in the oil and gas industry, labor expenses are only 1% of total costs, while equipment and structures are 60% and energy is 20%.)

If the costs of labor per unit increase, companies will either pass the added expenses to customers by raising prices or absorb them, reducing profits. Conversely, if the expense of labor per unit decreases, corporate profits increase, potentially leading to higher stock prices. Businesses have less incentive to increase costs and could compensate employees for being efficient with better pay. Workers experience an improved quality of life when wages increase and inflation remains stable. To determine the rate at which the economy can grow before inflationary pressures intensify, add the annual increase in labor productivity to the annual growth of the labor force. For example, if productivity per hour has risen at a 2.5% annual pace in recent quarters, and the workforce expands by 1% annually, the economy generally can expand at an annual rate of up to 3.5% in the long run without causing inflationary pressure.

Estimating Non-Inflationary Growth

Economists use growth-accounting models to estimate how fast an economy can expand without igniting persistent price pressures. These models incorporate factors like capital accumulation, demographic change, and labor-market institutions. For example, in Macroeconomics, Olivier Blanchard explains that potential output is the level of production that would prevail if employment were at the natural rate of unemployment and inflation were stable. He notes that potential output depends on the capital stock, effective labor input, and the level of technology. The economy’s sustainable growth rate is therefore determined jointly by technological progress, the evolution of the capital stock, demographic developments and labor-force participation, and the institutions that shape the natural rate of unemployment. There is no reason to expect a simple rule based on only one or two variables to yield a reliable measure of non-inflationary growth.

Baumohl also highlights the importance of the TIC reporting system, which provides insights into foreign capital allocation in the U.S. The TIC report monitors the movement of investment funds in and out of the U.S. It is released monthly by the United States Department of Treasury, delayed by 45 days. The report uses data gathered from financial and nonfinancial institutions on international exchanges related to equities, treasury notes, corporate debt, notes from government agencies, savings, and lending. The TIC report reveals the volume of overseas funds flowing into the U.S. and leaving for other countries.

(Shortform note: The TIC report has become increasingly important to policymakers in recent years due to the volatility of cross-border investment flows. In 2020, the COVID-19 pandemic triggered a massive sell-off of U.S. Treasury securities by foreign investors, followed by a rapid reversal as global demand for safe-haven assets surged. This episode highlighted the need for granular, timely data on international capital movements to monitor potential risks to financial stability. The TIC report, along with other flow data sets, has become a key tool for tracking shifts in global demand for dollar assets and identifying potential sources of market stress.)

The disparity between the two reflects the current account balance. The report focuses on foreign investment endeavors in America. It shows whether they are purchasing or divesting securities and in which direction the capital is flowing. When international investors purchase American securities, funds move into the U.S. When they divest, funds exit. The report provides information about foreign investors' perceptions of the U.S. economic and financial landscape. The U.S. relies on international capital influx to support its economy. If international interest in the U.S. diminishes, it might cause issues for the American economy.

Financial Account Balance

The disparity between the two reflects the financial account balance, not the current account balance. The financial account balance is a component of the balance of payments, which is a record of all economic transactions between a country and the rest of the world. The financial account balance specifically tracks the flow of financial assets, such as stocks, bonds, and real estate, between a country and the rest of the world. The current account balance, on the other hand, tracks the flow of goods, services, and income between a country and the rest of the world.

Actionable Signals

Baumohl asserts that economic indicators can significantly influence financial markets. They can influence how much investments are worth, so the government acts to regulate the release of confidential economic data. In the past, politicians sought to manage the release schedule of economic data to gain voter favor. Wall Street companies also understood that there was significant money to be made from economic data, so they paid reporters to give their traders economic news before it was published. This led Congress to hold 1970s hearings about the dissemination of these reports.

Later that decade, the government set up a strict calendar with rules for distributing economic data. Currently, most key economic measures are published under strict lock-up protocols, improving the trustworthiness of how the public receives this confidential information. Trading on insider knowledge of economic indicators is nearly nonexistent today.

High-Frequency Trading and Economic Data Releases

Since the publication of this book, the rise of high-frequency trading has led to renewed concerns about the timing of economic data releases. In 2014, the US Department of Labor ended its practice of allowing media outlets to access economic data before the public, citing concerns that high-frequency traders could exploit even millisecond timing advantages. This decision was controversial, with some arguing that it could lead to less accurate reporting. The debate highlights the ongoing challenge of balancing the need for timely economic information with the risk of unfair trading advantages. As a Wikipedia article on news embargoes notes, even small timing differences can lead to significant profits in today's markets.