Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

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Market risk is the potential loss arising from adverse changes in market rates and prices, such as interest rates and equity prices. We are exposed to market risk through our investments, revolving credit line and term loan agreements.

Our invested assets are held as cash and cash equivalents, restricted cash and investments, available-for-sale equity securities, equity securities and certificates of deposit. These investments are subject to interest rate risk and equity price risk. The fair values of our cash and cash equivalents, restricted cash and investments, and certificates of deposit at December 31, 2012 and 2011 approximated their respective carrying values due to their short-term duration and, therefore, such market risk is not considered to be material.

We do not actively invest or trade in equity securities. In addition, we generally dispose of equity securities received in conjunction with an acquisition shortly after the acquisition date.

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