 | TOP STORIES |  | | Rio Tinto Dives After Billiton Abandons Its Merger Plans | By Charlotte Mathews, 26 Nov 2008, 08:51 AM | Tio Tinto stock plummeted 42% while BHP Billiton's share price jumped 17% in London yesterday after Billiton walked away from a merger that would have been the second-biggest deal in history — and wrote off $450 million in deal costs. | Lost Principles | By Olivier Garret, CEO, Casey Research, 26 Nov 2008, 04:24 PM | As the economic crisis continues to unfold, recently a sense of uncertainty has begun to pervade the market. Even dyed-in-the-wool risk takers admit that they don't know what to think anymore. Inflation, deflation, recession or depression - there are so many vagaries that it appears to be anyone's guess what will happen next. | Diamonds Sought Near 'Big Hole' Again | By Charlotte Mathews, 26 Nov 2008, 08:43 AM | Diamond giant De Beers and explorer Tawana Resources have reached an agreement that will allow Tawana to explore for diamonds close to the Big Hole tourism-development in Kimberley, Tawana said yesterday. | Potential Energy Firms Impress Department | By Siseko Njobeni, 26 Nov 2008, 08:58 AM | Local and international energy producers could generate more than 5,000 MW from renewable energy sources, the minerals and energy department says. | Industrial Agglomeration And Entrepreneurship | By Edward Glaeser and William Kerr, 26 Nov 2008, 09:06 AM | Many academics, policy makers, and business leaders stress the importance of local conditions for explaining spatial differences in entrepreneurship and economic development. This article assesses the importance of various forces for agglomeration. The empirical evidence suggests that market effects, such as proximity to input suppliers and labour market pooling, play a big role, while there is less support for factors like entrepreneurial culture and industrial diversity. | Slowdown Sinks BHP Billiton Bid For Rio Tinto | By Charlotte Mathews, 26 Nov 2008, 08:47 AM | BHP Billiton had no plans to revive its hostile bid for rival Rio Tinto in the foreseeable future, but it was pursuing other options for growth, executives said yesterday. | | |