A study of smokers in Australia suggests there is "no evidence" that the introduction of 'plain' cigarette packaging has changed the way people buy cigarettes.
Researchers writing in BMJ Open found no increase in the use of illegal tobacco and no sign of cheaper brands flooding the market.
They surveyed 2,000 smokers before and after the laws came into force in 2012.
Tobacco companies said the survey was limited and not statistically robust.The study, from the Centre for Behavioural Research in Cancer in Melbourne, also found no evidence of small retailers, such as newsagents, convenience stores and corner shops, being hurt by the change.
Source : http://www.bbc.com/news/health-28966048