* For information on the "Commitment to Development Index" from the Center for Global Development: www.cgdev.org.
The full Castrol Index from the U.S. match against Canada is here.
That is according to new data on Gallup's Economic Confidence Index from the first half of the year.
(Another index, from the Federal Housing Finance Agency, has, however, shown a slight uptick in March and April).
Using a corruption index from the World Bank, the economists correlated these results with levels of corruption in the relevant nations.
The index from the National Association of Purchasing Management-New York showed that local business activity fell to 425.8 in March, from 427.7 in February.
The economist Hania Farhan, a native of Jordan, now works with the African researchers and oversees the index from the foundation's office on Portman Square, in London.
The latest index from the British Retail Consortium (BRC) and industry analysts Nielsen showed a 1.1% fall in prices in August, following a 0.8% drop in July.
Monday's air quality index from the United States Embassy's air monitoring equipment in central Beijing measured more than 300, which is categorized as "hazardous".
Singapore is now the world's most expensive city, according to the bi-annual cost of living index from the Economist Intelligence Unit, our corporate sibling.
An interim ruling on that case is expected in December.Switzerland has the world's most competitive economy, according to an annual index from the World Economic Forum.
