Going solar accelerates the return on investment for drivers of cars like the Honda Fit EV, the electric version of its popular subcompact, and owners also get to zero out their carbon emissions by fueling from the sun.

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But they have also argued that there will have to be major improvements to public transport and increased investment in measures to encourage drivers to leave the car at home and walk or cycle instead.

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Many shrug off events in Copenhagen on the grounds that national, regional and local regulations are the main drivers of clean-tech investment, not international deals.

ECONOMIST: Business comes to terms with a disappointing outcome

Branson, of all industry titans, should hope that the rail chips away at drivers not fliers if he takes the investment dive.

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Negative drivers were negative contributions from private inventory investment, federal government spending and exports, partially offset by personal consumption expenditures, nonresidential fixed investment and residential fixed investment.

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The three drivers of returns on equity in insurance, remember, are the investment yield, the cost of float and leverage.

ECONOMIST: Capital punishment

In addition, countless drivers, waiters, caddies, shop assistants and clerks owe their jobs to the new investment that privatisation has brought to the copperbelt.

ECONOMIST: Zambia

For the thousands of drivers who actually have personalised number plates, they are regarded as a statement of individuality or an investment.

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