But scientists also credit specific Brazilian government steps for the improved performance.
There is no doubting the improved performance of Iraq's security forces.
The improved performance of the 50,000 or so pupils who attended APS was indeed remarkable.
Barclays put the improved performance down to hectic activity last year in the bond and debt markets.
The company cited cost-cutting for the improved performance, but said cost pressures would continue to rise.
Andrew Scholey of the University of Northumbria said the improved performance might be attributable to an increase in heart rate.
The results mirror the improved performance of other carriers as the economic recovery continues around the globe.
These findings tend to strengthen the interpretation that the improved performance after the plant started was indeed a result of the plant, rather than some continuing trend.
A slight rise in new export orders contributed to the improved performance, though data inferred that it was the domestic market that provided the principal boost.
But while this flexibility was nice, the real draw was the improved performance, said Robert Keller, an engineering manager at Excite@Home.
The company put the improved performance down to cost cuts in the UK and a boost in exports thanks to the weakness of sterling after the EU referendum.
