1.   A falling dollar tends to hurt exporters because they get fewer francs when they bring home revenue from overseas.

2.   A higher dollar means exporters get more francs when they convert their dollar sales into the French currency.

3.   A higher dollar means oil companies get more francs for the crude they sell, which is priced in dollars on international markets.

4.   A falling franc is good for Swiss exporters because they get more francs for their foreign revenue.

5.   A rising dollar is good news for Roche, because it means it gets more francs for overseas revenue.

6.   A higher dollar means Elf gets more francs for selling oil, which is priced in dollars.

7.   A higher dollar means oil companies get more francs for the crude they sell, which is priced in dollars.

8.   A weak dollar is bad for Swiss exporters like Roche because they get fewer francs for their dollar-denominated earnings.

9.   A weaker dollar means exporters get fewer francs for their dollar-denominated revenue.

10.   A weaker Swiss currency means Roche gets more francs from sales abroad.