* University of Stirling's study into plain packaging at http://phrc.lshtm.ac.uk/papers/PHRC_006_Final_Report.pdf, or
* The British Medical Journal's review of Australian Plain Packaging laws, found here: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3710988/ - or...
* Perhaps it was the BMJ study into plain packaging, linked here? http://tobaccocontrol.bmj.com/content/17/6/416.full
"Cross-sectional survey during the roll-out phase of the law, analysed by timing of survey."
"How does increasingly plainer cigarette packaging influence adult smokers’ perceptions about brand image?"
The BMJ study, "Introduction effects of the Australian plain packaging policy on adult smokers: a cross-sectional study", found that plain packaging helped increase the urgency for smokers to quit. That's a causal link to reduced smoking levels.
The BMJ study "How does increasingly plainer cigarette packaging influence adult smokers’ perceptions about brand image? An experimental study" found that plain packaging helped reduce brand interest, helping reduce uptake by younger people. Again, a causal link to reducing the rates of smoking.
The surveys do provide plenty of evidence that plain packaging changes smoking behaviour. The price of cigarettes in Australia has risen due to taxation . A packet of cigarettes cost $16 in 2013, in 2014 it is now $20.
Edit: I was needlessly aggressive. Sorry.
If they want to reduce smoking then tie government benefits to not smoking. Ban it within the military; that they could do under the UCMJ. The for the rest, restrict where it can be sold and increase the taxation.
The cost has to become very high as even one hundred dollar monthly premiums on employee provided insurance do not stop people.
People spending money on tobacco are not spending that money on their children or paying their necessary household bills
High cost tobacco encourages criminal gangs to produce and import counterfeit products or to smuggle regular product. Smoking is harmful, but smoking some of the counterfeit cigarettes smuggled into England is even worse.
2004: http://news.bbc.co.uk/1/hi/uk/4096911.stm
2012: http://news.bbc.co.uk/1/hi/uk/4096911.stm
> One brand had eight times as much lead as normal cigarettes.
> All contained higher levels of cadmium, which can severely damage the lungs and is linked with kidney disease.
2014: video http://m.bbc.co.uk/news/health-28940681