Petrolwatch: Using mobile phones for sharing petrol prices

Publication Type:
Poster
Citation:
2009
Issue Date:
2009-06-24
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MOBISYS2009.pdfPublished version330.32 kB
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Price dispersion of homogeneous goods is widely prevalent in our economy. For instance, on 18 January 2008, around 9pm, two service stations in Roseville, Sydney, that are less than 1 km apart, were selling unleaded fuel at 1.359 and 1.439 Australian dollars per litre. Consumers who have access to the pricing information can benefit economically (e.g., a 5.5% saving in the above scenario). Several websites such as GasBuddy,motormouth1 enable consumers to compare fuel prices. However, the fuel price information is collected manually, by volunteers or employees, which is cumbersome, error-prone and not up-to-date. In this demo, we will demonstrate the operation of our PetrolWatch system [2], [3], which automatically collects fuel prices using camera phones. This is the first instance of applying participatory sensing [1] in sharing consumer pricing information.
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