The result Dr Rablen and Dr Oswald have come up with, though, suggests a positive effect associated with high status, rather than the absence of a negative effect, since unsuccessful nominees never know that they have been nominated.
Here, the literature also points to a positive feedback effect with decisive expenditure-based fiscal consolidation because this type of consolidation appears to foster growth, in particular in times of severe fiscal imbalances.
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The research, carried out by academics at Columbia University and the University of Pittsburgh, reveals that catching up with friends and socializing online can have a positive effect on self-esteem and well-being.
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Now that the U.S. has already been flooded with liquidity, more easing is unlikely to have much positive effect.
Many of you have found a way to work with this powerful engine of travel and manage it for positive effect and it is really worth noting and celebrating.
The researchers found that the drugs did have a positive impact on people with mild depression - but the effect was no bigger than that achieved by giving patients a sugar-coated "dummy" pill.
"If parents are responsible, are monitoring their children's behavior, paying attention to them, spending time with them, that's going to have a positive effect and protect them from going down the path of alcohol and drug abuse, " says Maria M.
"This is having a positive effect on Spanish travel, for example, with bookings higher than normal, " he told CNN.
In this context, a network effect is a positive feedback loop whereby platforms with stronger ecosystem of developers, content and service providers attract more customers.
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Diageo said it had carried out extensive research to ensure its campaign would resonate strongly with young people, and was confident they would have a positive effect.
By opening up the smartphone market in America with more options for pay as you go users, Apple could have a positive effect on the whole ecosystem.
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In bringing in more providers, choice is increased for house buyers, and that could have a positive effect on the developers - that they would want to take more risks with their housing too.
You can, in effect, talk back to yourself, with counter-messages that are accurate and positive.
The renewed multi-year deal with Express Scripts came into effect mid-September and the resulting improved prescription count should have a positive impact on the margins for Q1.
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