TANZANIA, Oct. 13 -- TANZANIAS ambition to become a one trillion US dollars economy by 2050 will depend not only on sound development policies, but also on its ability to mobilise long-term capital, finance productive enterprises and enable citizens to participate in wealth creation and ownership.

Dira 2050 presents a historic opportunity to transform the economy, raise living standards and create sustainable prosperity. Achieving these aspirations will require substantial investment in infrastructure, agriculture, manufacturing, energy, housing, technology and human development.

Government revenue, bank lending, foreign direct investment and development finance will remain important.

However, these sources alone may not meet the scale...