These price differences matter to businesses such as airlines, which hedge exposure to shifting oil prices.
The introduction of the euro has made some of these price differences even more glaring.
It said China was on track to become the world's biggest economy by 2016, after allowing for price differences.
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High-frequency trading relies on algorithms that exploit tiny price differences in the markets.
Such a pricing system obviously makes price differences a great deal more visible.
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Given that no team has qualified for the regionals yet, it is interesting to note the price differences across regions.
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The 16-year-old Edmond went to Milan, where he made money from exploiting price differences between Italian and British gold sovereigns.
There are certainly legitimate reasons for price differences, but the result is that poorer families pay more for the same groceries.
All categories were weighted equally (though price differences in barbershop visits and dry cleaning tended to be greater than those in gas and pizza).
Moreover, the computer systems are often a milisecond ahead of the trading floor and able to profit on half cent price differences.
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Over time technologies overshoot, markets modularize, and small price differences matter more.
This would concentrate liquidity in their shares and eliminate the small price differences that sometimes occur between exchanges and poison relations with investors.
Even if we were to measure UK inequality taking account of local price differences (especially, again, housing costs) then much of it would disappear again.
Apple attributes most of the price differences to the European countries' value-added taxes, which, unlike U.S. sales tax, is baked into the price of goods.
He recommends that exporters make sure that price differences in rich and poor markets reflect real differences in quality, or differences in the extra services attached.
Prices differ that is so as the good economist he is Milanovic has presented those numbers in PPP form, that is adjusted for those price differences.
And if one looks at the real exchange rate--essentially taking into account price differences between the U.S. and China--the yuan has actually depreciated against the dollar.
The biggest price differences tend to persist in non-tradable services.
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We buy and sell at the same time, locking in our tiny profits but making many, many, of them each and every day on those tiny price differences between different markets.
They use their own capital to trade and get to profit from rebates paid by the exchange for providing this "liquidity" and on the tiny increments in price differences as they make markets.
The Chinese economy is set to become as large as that of the US by around 2016 when assessed in purchasing power parity terms, which factor in price differences between countries, it added.
Brad Wurtz, CEO of Power Assure, an energy and data structure infrastructure management vendor, foresees a day when data centers move workloads around the country to take advantage of energy price differences between regions.
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The justification for the exception under Article 2.4.2 is, presumably, that that comparison methodology allows the authorities to home in on targeted dumping, which may be revealed by patterns of price differences among purchasers, regions or time periods.
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As the railway lines have been upgraded over the years, the price differences between rural and London housing have shrunk and as that example shows, you can actually calculate the price difference to a fair degree of accuracy.
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Another problem is that the single market is far from complete, so that competition does not even out price differences across the EU. The market in services, which represents the biggest share of economic output, is still fragmented.
But when we looked at the actual data (which are opaque at first sight and pretty hard to get), the price differences appeared huge: some paid 6 euros for a kilogram, others 8, and yet other 10 or even 12.
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Amazon spokeswoman Patty Smith said the price differences on certain DVDs are the result of tests that the company performs to re-evaluate various aspects of its Web site, such as the navigation system, what the home page looks like, overall site design and product pricing.
Beyond their price and processor differences, I found each machine had its strengths and weaknesses.
This is an art more than a science as every price pattern has subtle differences.
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