If you pit a pair of gladiators, one strong and one weak, against each other 10 times, the outcome will likely be the same every time: The stronger competitor will defeat the weak. But if you add into the field additional competitors of varying strength...
More than 600 major companies — from BP to Microsoft — have adopted carbon-pricing programs to spur energy conservation and control their carbon emissions. But the effectiveness of these efforts has not been analyzed or publicly reported.
An article...