It has had an influence on countries' behaviour in the past and could play a bigger role in the future.
Ms Smith said the government was also looking at whether pricing and promotion had an influence on young people's drinking habits.
Connolly clothes were not the sort you bought off the peg, but like much haute couture they had an influence on the broader market.
Industry trials can be well conducted, but there are many situations where a lack of independence has had an influence on the way the study was designed and the results that are released.
"No single event, before or since, has had such an influence on American art, " wrote the Whitney Museum director Lloyd Goodrich at the time of its 50th anniversary.
Few figures have had such an impactful influence on American political and cultural life.
The study found that so-called "sociometric" leaders like Physician 184 had more of an influence on word-of-mouth buzz than the self-reported opinion leaders, perhaps because the latter group tend to be less involved with their peers.
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But Dr Ian Campbell, medical director of Weight Concern and a GP in Nottingham, said doctors had forgotten how great an influence lifestyle choices had on health, and were becoming more and more drug-oriented.
He is described as having had an "enormous influence" on the field.
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When told at a news conference Thursday that Swan had cited his musical idol as an influence on his center-left government's economic policies, Springsteen urged caution.
Ryan did sit in on Idzik's second interview with the Jets, this person said, but only to exchange ideas and not as an indication that Ryan had any influence on Johnson's choice as GM.
The Tea Party has shown its grassroots power, but from its beginning had an electoral and financial infrastructure and a huge influence on the Republican Party.
Cooke's influence on the red and whites had been criticised but an angry Morgan was quick to come to the defence of his influential play-maker.
Changes in teaching methods or technology "have had very little influence, " says Henry Levin, an economist and expert on learning at Teachers College, Columbia University.
Lt Col Robin Lindsay, the soldiers' commanding officer, described Cpl Savage as an "exceptional soldier" and praised "his composed and professional approach (which) had a calming influence on his platoon".
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