According to "Economics of Sports Stadiums," most economists oppose subsidizing sports stadiums because
a. All of the above are correct.
b. a comprehensive review of stadium investments found that a new sports facility has an extremely small (or negative) effects on overall economic activity and employment.
c. providing state and local subsidies to build stadiums for professional sports teams is likely to cost the relevant taxpayers more than any local economic benefits that are generated.
d. a comprehensive review was unable to find any facilities that had a reasonable return on investment.