HANOI, Aug 20 (Reuters) - Vietnam's central bank has raised the interest rate on overnight loans between banks to 15 percent per year from 10.8 percent, it said in a statement.

TOKYO, Aug 20 (Reuters) - Japanese government bond futures retreated on Wednesday, pulling back from four-month highs as prospects receded for an interest rate cut by the Bank of Japan.

SEOUL, Aug 20 (Reuters) - South Korea failed to sell any index-linked treasury bonds on Wednesday as investors sought high yields on expectations inflation would ease in Asia's fourth-largest economy.

SYDNEY, Aug 20 (Reuters) - The Australian dollar climbed away from recent seven-month lows on Wednesday, supported by rebounding commodity prices and a softer U.S. currency, though the upside was capped by the prospect of lower interest rates.

Canadian retail sales are expected to modestly improve to 0.5% in June from the month's prior o.4%. May's reading missed expectations and sparked a "loonie" bearish rally that would ultimately see it lose nearly 700 points to the dollar.

HONG KONG, Aug 20 (Reuters) - Wing Hang Bank <0302.HK> is meeting Asian debt investors this week with an eye towards a potential dollar bond sale, a fund manager being briefed on the plans said on Wednesday.

SEOUL, Aug 20 (Reuters) - South Korea's foreign exchange authorities were seen selling dollars on Wednesday to prop up the won <KRW=>, traders said.

WARSAW, Aug 20 (Reuters) - Poland may need interest rate cuts in the first quarter of 2009 should the economy slow to about 4 percent and inflation ease, Monetary Policy Council (MPC) Stanislaw Owsiak was quoted as saying on Wednesday.

India has allowed the export of corn and non-basmati rice seeds, the Directorate General of Foreign Trade (DGFT) of the commerce ministry said.

The Bank of Japan (BoJ) downgraded its assessment on exports, consumer spending and production in its latest monthly report released on Wednesay, a day after it lowered its overall view on the economy.