The study finds that hybrid sales have come largely at the expense of small, relatively fuel-efficient, conventional cars, rather than large SUVs, trucks and vans, which produce substantially greater carbon emissions.
"If the intention of rebate programs is to replace gas guzzlers with hybrids, they are failing," says Ambarish Chandra, a professor at UBC's Sauder School of Business and study co-author. He says large vehicle sales have risen steadily since the introduction of hybrid rebates.
"People are choosing hybrids over similarly priced small- and medium-sized conventional cars, which are not far behind hybrids for fuel efficiency and emissions," says Chandra. "The reductions in carbon emissions are therefore not great."
The study also finds that the majority of consumers who purchase hybrids were not motivated to do so by government rebates, says Chandra, whose co-authors include Sumeet Gulati, assistant professor in UBC's Dept. of Food and Resource Economics, and Milind Kandlikar of UBC's Liu Institute for Global Issues and Institute of Asian Research.
"Our estimates indicate that two-thirds of people who buy hybrids were going to buy them anyway," says Chandra. "So for the majority, rebates are not changing behaviour – they are subsidizing planned purchases."
According to the study, the inefficiency of rebate programs rises disproportionately when governments increase rebate levels. "When B.C.'s rebate jumped from $1,000 to $2,000 in 2005, the actual cost of reducing carbon emissions more than doubled," he says, noting that Ontario recently increased its rebate to a maximum of $10,000 per hybrid vehicle.
The study finds that Canadian provinces that offer rebates have spent an average of $195 per tonne of carbon saved or, equivalently, $0.43 for every litre of gasoline that a vehicle consumes over its 15 year average life expectancy.
Chandra says that governments could garner greater environmental benefits by purchasing carbon offsets (currently priced between $3 and $40 per tonne on carbon markets) or investing in green jobs and technologies.
While hybrid rebates help governments to appear environmentally progressive, Chandra suggests that some programs may serve as de facto "bailouts" for the North American auto industry.
"The criteria for Ontario's recent rebate increase seem designed to benefit domestic manufacturers, especially General Motors," Chandra says. "The biggest rebates will be given to purchasers of the Chevy Volt, rather than other hybrids like the Toyota Prius."
Hybrid rebate programs are currently offered by the governments of the U.S. and 13 states, including Washington, Oregon, Illinois and Colorado, and five Canadian provinces, including B.C., Ontario, Quebec, PEI and Manitoba. The Canadian government offered hybrid rebates during 2007-2008.
Researchers used Canadian vehicle sales data over a 17-year period from 1989 to 2006. Results are believed to extend to the U.S. market, given the similarities between auto industries, in terms of vehicle buying patterns, pricing structures and car models.
Amputees can learn to control a robotic arm with their minds
28.11.2017 | University of Chicago Medical Center
The importance of biodiversity in forests could increase due to climate change
17.11.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
13.12.2017 | Health and Medicine
13.12.2017 | Physics and Astronomy
13.12.2017 | Life Sciences