The response to the initial public offering (IPO) by Anil Ambani group's Reliance Power seems to reflect the confidence of global investors in the future of the Indian economy, Finance Minister P Chidambaram said today."It is a reflection of world community in the future of India... Investors seem to be confident in the future of Indian economy," Chidambaram told PTI after the IPO that hit the market this morning for mopping up to Rs 11,700 crore.The IPO was fully subscribed within a minute of opening, and has generated demand worth over Rs 50,000 crore in less than two hours.