Researchers also carried out an experiment to test if signs of disorder that were heard had the same effect as signs that were seen.

VOA: special.2009.03.03

But,as economist Andrew Zimbalist points out, they are the effect of a free market.

VOA: special.2010.07.26

Obviously there's a trickle effect out into the economy so there's a loss of jobs as a result."

VOA: standard.2010.03.18

To sort out the confusion, Hashibe and her colleagues used statistical techniques to, in effect,make one big study out of the previous smaller studies.

VOA: standard.2010.06.30

Since the agreement went into effect in January, some textile factories have gone out of business.

VOA: standard.2010.05.13