useful stats

Graduate student enrollment and postdoctoral appointments have shifted in fields of study over the past decades, with many fields exploding in graduate enrollment and postdoctoral appointments. Computer and information sciences graduate students jumped from just 4% of all science enrollments in 1975 to nearly a quarter of the total by 2021, while engineering postdocs in biological, biomedical, and biosystems engineering jumped 5,671%– increasing from 3% in 1975 to 19% of all engineering postdocs by 2021. This edition of Useful Stats uses the full range of NSF GSS data to explore trends in graduate students (1975-2021) and postdoctoral appointees (1979-2021; postdocs) in science and engineering.

The number of graduate students in science, engineering, and health has grown from approximately 328,000 to 760,000 from 1975 to 2021, a 132% increase, according to the National Science Foundation’s (NSF) Survey of Graduate Students and Postdoctorates in Science and Engineering (GSS). When compared to a 60% increase (from 9.7 to 15.4 million) in total undergraduate enrollment across all fields of study over the same time period, the scale of growth can be better seen. However, while the number of graduate students in science has seen an upward trend over the 46-year period, the number of graduate students in engineering has stagnated since 2014.

The United States has one of the most diversified economies of any nation, yet also the most dynamic; over the past five years, from 2018 through 2022, the U.S.’ agriculture, forestry, fishing, and hunting industry has grown 53%, while other industries such as manufacturing and construction have grown at a slower pace—17% and 23% respectively—compared to a 25% increase in overall gross domestic product.

Income inequality in the U.S. has increased from 2006 to 2022, according to American Community Survey (ACS) data. While it’s increased in the nation as a whole, it decreased in North Dakota, Washington, Hawaii, Nebraska, and Montana from 2018 to 2022. New York and Washington, D.C. lead the nation in income inequality. This edition of Useful Stats explores state-level Gini index data from the U.S. Census Bureau’s ACS, analyzed by the State Health Access Data Assistance Center (SHADAC) at the University of Minnesota.

United States venture capital activity not unexpectedly slowed down in 2023, cooling off after multiple years of record-high deals and values during 2021 and 2022, according to the PitchBook-NVCS Venture Monitor Q4 2023. Pitchbook-NVCS estimates a total deal count of 15,766 (13,608 actual + 2,158 estimated) for 2023– exceeding the values of 2020 and prior years but falling several thousand short of the last two years. Between these deals, just $170.6 billion was invested, a drop of $71.6 billion from 2022 and $177.4 billion from 2021.

In 2021, U.S. microbusinesses reported $8.1 billion in research and development (R&D) expenditures, of which the microbusinesses themselves performed 75% ($6.1 billion) The $6.1 billion in microbusiness-performed R&D represents an increase of 9% over the prior year and 17% since 2019. Microbusinesses are those with nine or fewer employees.

The United States is home to some of the world's most prestigious universities, each performing critical research that helps advance the country’s innovation economy. However, these universities are not evenly distributed across the country; many are concentrated within large cities in states where their spillover further impacts the local economies.

Research and Development (R&D) is an essential component of innovation and economic growth, where higher education institutions play a key role. However, with these institutions being responsible for funding just a quarter of all HERD expenditures, it is important to see the influence of outside funding sources on the fields of R&D. For example, Health and Human Services (HHS) has long been the largest contributor of funding into higher education R&D, which is reflected in life sciences being the R&D field with the most significant funding levels.

Institutions of higher education spent $97.8 billion on research and development (R&D) activities in fiscal year (FY) 2022, an increase of nearly 9% over the prior year’s $89.8 billion. Over the past decade of available data, from FY 2013-2022, higher education R&D expenditures have increased 46%, from $67.1 to $97.8 billion. However, when adjusted for inflation, the growth is more modest at 17%.

Jobs held by degree holders in Science and Engineering (S&E) fields make important contributions to our nation’s economic growth and global competitiveness, fueling innovative capacity through research, development, and other technologically advanced work activities, according to the National Science Foundation (NSF). This edition of Useful Stats will explore NSF National Center for Science and Engineering Statistics (NCSES) and National Science Board (NSB) education data, specifically data on S&E associate and bachelor’s degrees, and the S&E workforce supplied by the educational systems.