21.  A falling dollar means exporting companies earn less overseas in terms of their own currency.

22.  A higher yen makes Japanese exports more expensive abroad and thus less competitive, cutting into the earnings of the exporting companies.

23.  A stronger dollar is usually seen as a good factor for Japanese stocks since it boosts the value of overseas earnings by major exporting companies.

24.  A stronger yen makes Japanese exports more expensive abroad and thus less competitive, and reduces the dollar-denominated earnings of exporting companies when translated into yen.

25.  A strong U.S. currency makes Japanese exports cheaper abroad and also helps boost the earnings of export-dependent exporting companies.

26.  A weaker yen helps Japanese exporting companies by boosting the yen-denominated value of their overseas earnings.

27.  A weaker yen is good news for Japanese exporting companies, whose earnings take a beating when the yen is higher against other currencies.

28.  Among exporting companies interested in securitising assets is Bangkok Rubber Plc, another footwear-producer.

29.  But selling by Japanese exporting companies pushed it back down later, traders said.

30.  But the dollar retreated from its morning high on selling by Japanese exporting companies, a Dai-Ichi Kangyo Bank dealer said.