STEM subjects are the fields of study in the categories of science, technology, enginieering, and mathematics. Since the STEM jobs such as computer specialists and bio-engineers require higher education and professional knowledge about their fields, the average salary of STEM jobs are higher than the average salary of the U.S. The <Figure 1> by Newgeography (2011) illustrates that STEM-related jobs earn much higher in most states than other jobs.
<Figure 1> The STEM-Related Job Earings vs. All Other.
Wright, J. (2011, September 30th). States with Largest Presence of STEM-Related Jobs. Newgeography. Retrieved from http://www.newgeography.com/content/002463-states-with-largest-presence-stem-related-jobs