Published by Jamie JemmesonSpeculation is growing that Japan may soon seek to intervene independently to curb the rise of the yen.Following an early Nikkei news report (August 25th) which claimed the ministry of finance would look to redress disparity between the yen and the dollar by driving the greenback higher, the country's finance minister Yoshihiko Noda said he is watching the yen's movements closely.A statement to reporters cited by Reuters reads: "They have been one-sided. I will watch currency moves very carefully with great interest. But when necessary we must respond appropriately."However, Nikkei reports that the efficacy of such an intervention is likely to be mooted unless Japan can find support from the US and Europe.The rise in the yen is likely to lead to diminishing international payments receipts as the high cost of buying Japanese goods damages exports.In tomorrow's Asian trading session, forex brokers will also be examining household spending, consumer prices, and unemployment figures for further signs that growth is slowing.For more information on international payments, visit our Smart FX site.