TANZANIA, Oct. 20 -- WHAT if the money investors are competing to lend to the government could also finance businesses, expand private-sector investment and create new opportunities for wealth creation? Tanzanias capital market is sending a clear signal: Investors have money to invest, and the challenge is increasingly about providing the right products to meet their expectations.

The recent oversubscription of the 25-year Treasury bond offers an important lesson on how the country can unlock this investment potential.

Oversubscription has increasingly become a familiar feature of Tanzanias financial market whenever attractive investment opportunities emerge.

The recent auction of the 25-year Treasury bond illustrates this trend. Inves...