But would such a move help or hinder people trying to quit smoking?
The daily drama of money and work from the BBC.
Norway - how has it evaded the resources curse that afflicts most oil-rich nations?
Europe's simmering row over austerity boils over once again. We hear live from Paris.
How much do traffic jams cost an economy?
The latest business and finance news from around the world, on the BBC.
The business people inspired and influenced by highbrow philosophers