What is interesting is that those resource companies score very well on the tests: this is in part because the agitation by Transparency International in recent years has been quite successful in getting them to sign up to reveal the information.

FORBES: Berkshire Hathaway Fails The Transparency Test

The Sri Lankan branch of the anti-corruption group Transparency International reviewed Sri Lanka's record on the fifth anniversary of the tsunami.

CNN: Learning lessons from past disasters

So today I call on the Bush administration, the World Bank, the International Monetary Fund to begin immediately crafting transparency guidelines for these sovereign wealth funds.

CNN: Clinton's November 19, 2007, speech on economic challenges

Earlier this year Mr Mbeki dismissed the Transparency International corruption rankings for being based on mere perceptions.

ECONOMIST: Trying times for South Africa's deputy president

Corruption further exacerbates discontent among the population, with Angola ranked 168th out of 183 countries on Transparency International's 2011 Corruption Perceptions Index.

CNN: Post-war generation emerges as Angola heads to the polls

International health experts have commended China on its transparency in reporting the spread of the virus, in sharp contrast to its handling of a Severe Acute Respiratory Syndrome (Sars) outbreak in 2003, when 8, 096 people were infected worldwide and 744 died.

BBC: China bird flu: Beijing reports its first case

Chad was recently ranked the most corrupt of 21 African countries in a survey on good governance criteria by Transparency International.

BBC: Africa's mammoth oil project comes of age

Angola ranked 168th out of 183 countries on Transparency International's 2011 Corruption Perceptions Index, and was 148th out of 187 countries in the U.N.

CNN: Angola's ruling party declared election winner

He argued that "maximum value for money from every pound" would be achieved by introducing "greater transparency, rigorous independent evaluation and an unremitting focus on results" to the work of the Department for International Development (DfID).

BBC: International Development questions