Types. 1  Non-governmental organizations (NGOs)âtypically considered a part of civil society. 2  Multinational corporations (MNCs)âfor-profit organizations that operate in multiple sovereign states. 3  The International Media.  Violent non-state actorsâArmed groups, including groups such as ISIS or criminal organizations, for example drug cartels.
According to TiqIQ, the average price for all 26 sessions for 2014 U.S.Open tennis tickets is currently $373.82 on the secondary market. Last yearâs average price including all sessions was $316.80, marking a price increase of almost 18% for this yearâs U.S. Open.
Tennis is played in the United States in all five categories (Men's and Ladies' Singles; Men's, Ladies' and Mixed Doubles); however, the most popular are the singles. The pinnacle of the sport in the country is the US Open played in late August at the USTA Billie Jean King National Tennis Center in New York.