This week, police respond to protests in the downtown

This thesis uses input-output modeling to measure the economic impact of non-profit sectors.

The model is calibrated using data that describes the inter-industry relationships within each local economy, and then simulated using input-output analysis with social accounting matrix extensions.

Output multipliers are generated for the Arts, Education, Environment, Health, Human Services, and Other non-profit sectors using software, which calculates the ripple effects throughout each local economy.

There are still considerably more businesses than nonprofits, of course, about four times as many.

But over that period, nonprofits also outpaced businesses in their percentage growth in hiring, wages and contribution to the gross domestic product, according to the Urban Institute.

The number of nonprofits in the United States grew 25 percent while the number of for-profit businesses rose by half of 1 percent, according to the most recent figures compiled by the Urban Institute.

All told, roughly 1.6 million nonprofits employed 10 percent of the domestic work force in 2010 and accounted for 5 percent of G.D.P. Nonprofits are all exempt from corporate taxes according to the Urban Institute.

In addition to the economic activity encouraged by nonprofits and the countless dollars that nonprofits save governments through their efficient service delivery, nonprofits are also one of the greatest sources of employment across the country.

According to the Bureau of Labor Statistics, the nonprofit sector employs 11.4 million people – that’s 10.2 percent of the American workforce!

Check out the map below to find out what percent of the workforce in your state is employed by a nonprofit. But over that period, nonprofits also outpaced businesses in their percentage growth in hiring, wages and contribution to the gross domestic product, according to the Urban Institute to the Bureau of Labor Statistics.

All told, roughly 1.6 million nonprofits employed 10 percent of the domestic work force in 2010 and accounted for 5 percent of G.D.P. Nonprofits are all exempt from corporate taxes. But aside from that, they are an extremely varied group. Most are charities, for which donations are tax-deductible.

According to the Bureau of Labor Statistics, the nonprofit sector employs 11.4 million people – that’s 10.2 percent of the American workforce! What percent of the workforce in your state is employed by a nonprofit. But over that period, nonprofits also outpaced businesses in their percentage growth in hiring, wages and contribution to the gross domestic product, according to the Urban Institute.

When it comes to the top 10 national economies around the globe, the order may shift a bit, but the key players usually remain the same, and so does the name at the head of the list. The United States has been the world’s biggest economy since 1871. But that top ranking is now under threat from China.