Introduction
Manufacturing Encompasses More Than Just Factories
Manufacturing industries are a fundamental part of our economy, but national statistics suggest they are of only minor importance. In particular, the economic statistics say that manufacturing’s proportion of final demand or gross domestic product is only about 11% and its share of total employment is just 9%.
As measured by our spending, however, manufacturing certainly seems to be more important than 11% of the total market value of goods and services produced in the economy. We see physical goods surrounding us at home, in transit, at work, and at play. Businesses and governments invest in equipment as well as structures built from manufactured construction materials. Further, a sizable majority of U.S. exports are manufactured goods.
The Manufacturers Alliance Foundation finds that manufacturing’s footprint is much larger than merely the value-added at the factory loading dock. The sector has both an upstream supply chain that includes networks of scientists and engineers, specialized material suppliers, equipment, transportation, and other service providers plus a downstream sales chain that includes logistics and a global assortment of wholesalers and retailers.
A detailed accounting reveals that the value chain of manufactured goods represents a much larger share of the economy than the 11% generated at factories. Using calculations from U.S. input–output tables, performed for the Manufacturers Alliance Foundation by Inforum at the University of Maryland, we find that sales of manufactured goods and their associated services represent about one-third of total final demand in the economy. The value chain responsible for satisfying this demand stretches across the economy and the world.
A New Model for Manufacturing’s Multiplier Effect
The multiplier effect of spending for manufactured products on nonmanufacturing industries is also much higher than as conventionally measured in the input–output tables. The traditional output multiplier for manufacturing indicates that every dollar in final sales of manufactured products supports an additional $1.40 in upstream supply chain output from nonmanufacturing sectors in the economy.
Unfortunately, this basic multiplier includes final sales of imports and does not count the downstream sales chain. We modify the calculation to make it more meaningful. Removing final sales of imports from the denominator and adding downstream sales chain transactions increases the multiplier effect. With this adjustment, one dollar of domestic manufacturing downstream sales for final demand (the producers’ value at the factory loading dock) drives another $2.70 of supply transactions elsewhere in the economy, downstream and upstream.
This still paints an incomplete picture, however. These multipliers measure the volume of transactions between members in the supply and sales chains and therefore double count. As manufactured material passes to other members in the value chain, each transaction includes the previous step’s transactions.
In this report, the Manufacturers Alliance Foundation introduces a new multiplier that eliminates double counting and provides a more comprehensive treatment of manufacturing. According to our domestic manufacturing value chain multiplier, one dollar of domestic manufacturing value-added destined for manufactured goods final demand generates another $3.60 of value-added elsewhere.
Measuring the Manufacturing Value Chain
Manufacturing plant activities lie near the center of a substantial and complex value chain that is composed of an upstream supply chain that gathers materials and services and a downstream sales chain that moves goods to market and sells and services manufactured goods. Activities such as research and development, corporate management, logistics operations, and advertising and branding lie outside manufacturing industries’ definition as measured in national statistics. The conventional measurement of the manufacturing economic footprint, therefore, is badly underestimated.
The Manufacturers Alliance Foundation measures the manufacturing value chain in the most inclusive terms but still within the framework of national statistics. The method we use provides a better measure of the size of the manufacturing value chain and improves the understanding of the reach and importance of manufacturing operations and the goods produced. We answer the question of why the amount spent to purchase manufactured goods is so much higher than the manufacturing plant activity alone.
The Manufacturers Alliance Foundation finds that manufactured goods’ value is not limited to the factory floor. Other contributors include corporate R&D centers that advance product and manufacturing technology, the utility industry that produces the factory’s electricity, the transportation industry that delivers output to market, the wholesale and retail industry that performs sales and service activities, and providers of financial services and insurance. Our analysis details each industry’s contributions in terms of value-added and employment.
Following the Income (Supply)
Our approach tracks the supply of manufactured products by following the income, which broadens the scope to include both the supply chain and sales chain via tracing revenue. What we find from income analysis is that manufactured products directly or indirectly transact with every other sector in the economy, including agriculture, mining, professional services, and finance. A supply-side analysis also reveals more detail such as industry production, import penetration, industrial income, and employment.
In supply-side accounting, the total producers’ value for each sector includes the value of all of the intermediate inputs purchased for use in production plus the value-added generated by the production activity of firms. It is important to understand that value-added is the work an industry does itself, not work it pays others to perform. Value-added (1) is calculated by deducting from producers’ value the “sourcing spend” (intermediate purchases for supplies, utilities, and services).
The primary focus of supply-side national accounting is ultimately to separate out value-added because when summed across all industries, value-added is equal to GDP. The income created from production must equal the final demand spending to purchase that production. A detailed input–output accounting of manufacturing supply allows all final demand to be traced to a value chain in terms of value-added by the domestic industry and imports (foreign value-added).
Manufacturing Is Defined Narrowly in National Statistics
Most economic industry statistics are constructed from data collected at the establishment level, not the firm level. There is a big difference between the two. In manufacturing, an establishment is a plant and a manufacturing firm may have many plants. A firm could also have a corporate office that is separate from a plant; this office is classified as management of a business enterprise (a service industry) in economic statistics. When location separates establishments, each establishment is classified into the industry that predominates at that location. For example, when an R&D center is located apart from a manufacturing plant, the activity at that center is counted as a service, not manufacturing. The same holds for a warehouse for wholesale trade and centralized logistics for transportation. In economic statistics, manufacturing consists only of manufacturing establishments (plants), irrespective of the other industries owned by the firm.
This narrow definition of manufacturing helps explain why the sector’s footprint is understated and why a comprehensive accounting of the supply of manufactured goods is needed. Tables 1 through 3 show the upstream supply chain, downstream sales chain, and the total value chain for manufactured products for final demand. Each table shows gross output (revenue), value-added, full-time equivalent (FTE) employment, total compensation, and annual compensation per full-time equivalent worker across various industries contributing value to manufactured goods bound for final demand.
Intermediates From the Upstream Supply Chain
All businesses buy intermediate goods and services that they incorporate into their products and services. Table 1 tracks the upstream supply chain by industry for revenue, value-added, employment, and compensation. Production from the upstream supply chain delivers the raw materials, processed inputs, and services required by the downstream sales chain. An upstream supply chain concept is illustrated in Figure 1, which shows a simplified motor vehicle example. To make motor vehicles, a factory needs steel (some of which is imported) and a domestic steel manufacturer purchases inputs such as coal; all of these materials require transportation from place to place and the transport vehicles consume fuel. A motor vehicle dealer also purchases utilities, insurance, and services to sell cars.
Figure 1