2007 Annual International CHRIE Conference & Exposition
436
based on the assumption that firms with higher coverage ratios face lower exposure because of their ability to
service debt payments and absorb unexpected shocks. Because economies of scale are an increasing function of
firm size, the log of the sales is used to proxy for firm size. Larger firms may be better able to manage risk
exposures than smaller firms so larger firms are expected face higher exposures. The quick ratio (cash + marketable
securities + accounts receivables) is included as a proxy variable for hedging substitutes because firms with higher
amounts of internal funds (higher liquidity) can withstand unexpected shocks and reduce potential financial distress
costs, and therefore be less likely to hedge the exposure. Finally to control for foreign exchange exposure, I include
the ratio of foreign sales to total sales. Previous research has documented the importance of this variable in the
decision to hedge and level of hedging (Allayannis & Ofek, 2001).
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