Javier Gil-Bazo and Pablo Ruiz-Verdu studied the relationship between mutual fund performance, management fees, commissions and flow of funds in The Relation between Price and Performance in the Mutual Fund Industry.
For example, the sudden tripling in the price of oil between 1971 and 1974 roughly matched the tripling in the price of gold over the same time period.
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.
These economics work if the delta in price between petroleum and natural gas continues.
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Food director of British Retail Consortium, Andrew Opie said that there is "a variation in price between those in the top quarter of dairy production and those who aren't and farmers who are lucky are those in supermarket supply chains".
In other words, the price difference between a chocolate bar in England and an identical bar in the United States may not be completely arbitraged away by the importation of U.S. chocolate bars because there is still the matter of transportation costs.
Blurring the line between in-store price comparison shopping and stay at home shopping via the Internet, IBM (IBM) reported the number of consumers using their mobile device to make a purchase on Black Friday this year increased by nearly two-thirds from 2011.
And lots of price points in between, something for every taste and wallet.
Because the price break happened so fast and went so far, there are few price points in between for traders to use as guideposts.
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"Theft in price-volatile markets: On the relationship between copper price and copper theft", by Aiden Sidebottom, Jyoti Belur, Kate Bowers, Lisa Thompson and Shane Johnson.
Well, it turns out that the highly significant association between an increase in price and a decrease in death is rather more complicated than the academic and media summaries would have you believe.
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The correlation between daily changes in closing price in the two price series is 0.93, on a scale where 1.0 would tell you that one change is always a fixed multiple of the other.
But in the case of goods that change in quality every year, it is much harder to split an increase in nominal ouput or spending between a change in volume and a change in price.
The ETN is designed so that a 0.1% change in the spread between those two yields should result in a 2% price move for FLAT.
And already, because of inflation in Brazil and price deflation in Argentina, the real exchange rate between them is close to its pre-devaluation level.
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The enormous differences in debt levels make the comparison between price-earnings ratios not so meaningful.
Perry forecasts a roughly 3 percent increase in freight tonnage in 2012 and price increases of between 5 and 8 percent.
Any profits result from the difference in price in the time between when they sold and when they re-entered the market.
Market timing is the rapid trading of mutual-fund shares in order to take advantage of the gap between the price of a fund, which is set once a day, and the continuous changes in the value of the underlying portfolio of securities.
The monetary story here is that shadow price of cash rises in between student loan disbursements.
Price that third option in between the other two, like the modern pool table.
With at least a one hundred year reserve of domestic shale gas in America, a huge price difference between natural gas and diesel or gasoline, and the opportunity for significant energy security benefits offered by a domestic resource, businesses, consumers and governments have realized the need to incorporate natural gas into the national transportation mix.
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In business the wrong decision may wipe thousands off a share price but in medicine it could be the difference between life and death.
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And Britain is in fact unlikely to withdraw from the ETS, so the relationship between the ETS price for carbon and the one set by the British taxman (in our test, higher) needs some thought.
The gold price in dollars fell in half between Jan. 1975 and Sept. 1976.
Many analysts have attempted to value gold in other ways, such as by assuming a constant ratio between the gold price and consumer prices, personal incomes, the amount of U.S. dollars in circulation or the value of the world's financial assets.
Astronomer Royal, William Herschel, noticed a correlation between sunspots and the price of wheat in England two centuries ago.
At least six people have died in Guatemala in clashes between security forces and protesters angry over electricity price rises, officials say.
Take a look at the chart below, which shows the strong correlation between incomes in China and India and the gold price.
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