The study contends that the bonus provides an unfair advantage to middle- and upper-income riders.

The study contended that lower labor costs in emerging markets are not the major reason for hiring researchers overseas, though they are a consideration.

If academics had only understood what the chartists were talking about, the study contends, they might have found much with which they could agree.

The study contends that the recyclable label should be used only where recycling is actually taking place.

The study contends that the public has largely been shunted aside as politicians seized on charters and vouchers to make a particular political point.

The study contends that while none of the districts have an official policy of "social promotion," the practice is common.

The study contended that there were abuses in handling seafood all along the chain from the fishing vessel to the retail store.

The study does not contend that pregnancy causes no problems or disruptions.

A study on hunger released today contends that 20 million Americans do not get enough to eat every day.

Other studies contend that pollen from engineered corn can kill monarch butterfly larvae.