The article explores why companies use strategies to protect themselves from changes in foreign currency values. It looks at whether these strategies work together or are used separately. The researchers studied 147 manufacturing companies listed on the ISE in 2006. They found that companies do use foreign currency hedging strategies. The best indicator for why they do this is having a short position in foreign currency, which shows their exposure to exchange rate risk. They also found that using foreign currency derivatives and foreign currency debt together is beneficial for these companies.