Write a short essay evaluating the U.S. economy in terms of each of the six determinants of average labor productivity discussed in the text. Are there any areas in which the United States is exceptionally strong, relative to other countries? Areas where the United States is less strong than some other countries? Illustrate your arguments with numbers from the Statistical Abstract of the United States (available online at www.census.gov/compendia/statab/) and other sources, as appropriate.