Small-business owners can get guidance by surveying their own customers.
Research suggests a link between plain-packaging laws and declines in cigarette sales.
Tobacco products are traditional inventory at many US drug stores, and some are reticent to purge it from their shelves—perhaps for good reason, research suggests.
Financial distress for one carmaker can have harmful short-term effects on its rivals.
Patients already in treatment are more effective than health workers at persuading potential TB sufferers to get screened.