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Topic: Price equation


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In the News (Tue 10 Nov 09)

  
  Price equation - Wikipedia, the free encyclopedia
The Price equation (also known as Price's equation) is a covariance equation which is a mathematical description of evolution and natural selection.
From Equation 3, the average sightedness of the parent population is z = 5/3.
Dynamical sufficiency means that such equations can be found in the genetic model, allowing the Price equation to be used alone as a propagator of the dynamics of the model forward in time.
en.wikipedia.org /wiki/Price_equation   (2524 words)

  
 George R. Price - Wikipedia, the free encyclopedia
Price was born in 1922, the younger brother of Edison.
W.D. Hamilton (1996) failed to recall when Price first contacted him, but says he Price had read Hamilton's 1964 papers on kin selection, and with no training in population genetics or statistics devised the Price equation, a covariance equation that generated the change in allele frequency of a population.
Price's contributions were then largely overlooked for twenty years; he had worked only in theoretical biology for a short time and was not very thorough in publishing papers.
en.wikipedia.org /wiki/George_R._Price   (933 words)

  
 6. The Stochastic Equations of the ROW Model
The equations for E and H have the same general specification except that U.S. variables are the base variables for the E equations and German variables are the base variables for the H equations.
Because equation 6.6 is interpreted as an exchange rate reaction function, the use of the relative price level in it is in effect based on the assumption that the monetary authority goes along with the forces on the exchange rate and allows it to change in the long run as the relative price level changes.
Equation 6.11 thus takes PX to be a weighted average of PY and the world price index in local currency, where the weights sum to one.
fairmodel.econ.yale.edu /MA/MA6.HTM   (7161 words)

  
 Linear Equations and Modeling
A solution for an equation in x is a number such that when we substitute that number for x in the equation we have a true statement.
Equations are equivalent if they have the same set of solutions, and there is a collection of operations on the equations that produce equivalent equations.
We would usually go directly from the first equation to the third, and students often think of this as "moving the 6 to the other side." This is likely to cause problems unless you remember exactly what we are really doing to get from the first equation to the third.
www.uncwil.edu /courses/mat111hb/Izs/linear/linear.html   (1840 words)

  
 The Pricing Behavior of Korean Manufactured Goods
Given the presumed importance of the size and speed of the impact of external prices on domestic prices in the formulation of these policies, it is necessary for economists and policy makers to accurately measure of the size and speed of the impact of import prices on domestic prices, particularly on prices of manufactured goods.
Since the two price variables are measured as rates of change, this estimated coefficient is the external price elasticity and it indicates a high degree of openness of the economy.
While we are successful in separating the role of changes in external price and imported material cost in the determination of domestic price, the estimated external price coefficient in the first two rows may still not give a true measure of the impact of import prices on domestic price during trade liberalization.
www.csus.edu /indiv/y/yangy/the.htm   (3349 words)

  
 [No title]
Bismarck's market price equation for the week of Aug. 22 is: Market price = 157.7797 + (-19.0693 x Cwt) + (1.214112 x Cwt x Cwt) This equation generates a price range of $87-$93 for 500- to 600-pound feeder calves with an $89.83 projected price for 550- pound feeder calves.
If this weaker futures price is combined with the Bismarck price equation, 500- to 600-pound feeder calf prices are projected to be in the $84-$89 range this fall.
The projected price for 700- to 800-pound backgrounded feeder cattle in quarter one of 1998 is $80-$82 with a projected price slide of only $0.86.
www.ext.nodak.edu /extnews/newsrelease/back-issues/000231.txt   (1277 words)

  
 [No title]
If this equation is plotted for a wide range of feeder cattle weights, the price schedule is convex-to-the-origin, which implies that price slides get smaller as feeder weight increases.
If the $0.53 price difference is adjusted for a typical North Dakota $0.25 basis, the projected market price equation's constant term needs to be adjusted downward by $0.29 per hundredweight; i.e., the whole projected price schedule is shifted downward $0.29.
I then subtract the futures price from the equation's calculated price for 750 pound steers to see how much the constant term has to be adjusted.
www.ext.nodak.edu /extnews/newsrelease/back-issues/000183.txt   (1048 words)

  
 Demetrius at The Australian National University: Item 1885/40312   (Site not responding. Last check: 2007-11-01)
In the first stage, the item/item group-wise price equations are estimated and, hence, the region-wise estimates of slope and of the intercepts of the item-specific price equations are obtained.
In the second stage, the set of multilateral regional price index numbers are estimated by regressing the region-specific intercept differentials on the corresponding slope differentials of individual items/item groups using another dummy variables based regression equation.
The paper is organised as follows: Section 2 specifies the price equation, explains via a reference to the CPD model the rationale of the proposed regression based procedure for estimating multilateral price index numbers from household level price/unit value data (Section 2.1) and describes the estimation method (Section 2.2).
hdl.handle.net /1885/40312   (538 words)

  
 Safe Haven | Real Inflation
The new CPI produces a price change estimate that is correct for evaluating the "cost of living." It also produces a number that is on average approximately 1.1% lower than the previous CPI.
The price change of existing housing is the result of inflation and is a hedge against inflation.
Price change in housing remained near the 1.0% to 2.0% level versus CPI and the -1.0% level versus real inflation predicted until the Federal Reserve began extraordinarily aggressive monetary policy in 2001.
www.safehaven.com /article-5795.htm   (3193 words)

  
 [No title]
The equation for the price slide is: Price Slide = X1 + 2x2xCWT where Price Slide is expressed in dollars per hundredweight of weight change and CWT is the weight of the feeder calves.
Fed steer prices are expected to remain under pressure this summer, trading in the mid-$60s, before moving higher into the fall as supplies begin to drop.
Prices should average in the higher $60s this fall and move well into the $70s in the first quarter of 1998.
ohioline.osu.edu /~rmoore/newsletter/beef/beefjul30.html   (2595 words)

  
 FRBSF: Economic Letter - Capacity Utilization and Structural Change (11/15/96)
Indeed, the correlation between the level of inflation and utilization is weak, reflecting the important role of long-term monetary policy influences, short-run food and energy price shocks, and other inflation determinants which belong in fully specified models of inflation in addition to measures of resource utilization.
Also, to keep matters simple, most of the effects of food and energy price shocks can be controlled for by focusing on the acceleration in the core measure of the CPI, which excludes the prices of food and energy items.
Second, although slack capacity abroad will lower local currency prices of foreign goods and help slow foreign inflation, other factors---changes in the exchange rate and the extent to which changes in foreign prices are passed through to prices of goods supplied to the U.S. market--also influence the dollar price of U.S. imports.
www.frbsf.org /econrsrch/wklyltr/el96-34.html   (1707 words)

  
 ECN 306
Equation (2) describes the behavior of the farmer at planting time (March), we must change the Q
• In cell D2 enter the price equation, that is the inverse demand function—equation (1) solved for price.
This is the price that will cause the quantity demanded to just equal the harvest.
www.uri.edu /artsci/ecn/ramsay/ecn306/project5B.htm   (291 words)

  
 Design Science: Equation Editor Licensing
Equation Editor supports both OLE 1 and OLE 2 (Object Linking and Embedding), EGO (Edit Graphic Object), and works with any application that allows the user to paste graphics using the Windows or Macintosh clipboard.
Equation Editor is not free, but it is much less than you might think.
Our business model is to get Equation Editor in the hands of as many people as possible by licensing to other software developers at a very reasonable price.
www.dessci.com /en/company/licensing/eeinfo.htm   (448 words)

  
 Gas price betting - Netprophet Sports
The LA/New York gas price prop is down to +222 and the national average prop is down to +105.
The per barrel price for oil is at record highs, and while there may be a slight downturn in the prices I don’t see anything that could cause a substantial drop.
Listening to CNBC and Bloomberg today, where the $64 a barrel oil prices were the top story, most petroleum industry analysts predicted “at the pump” price increases of.15 to.20 a gallon nationally, with “substantially higher” price jumps on the west coast.
www.bettorsworld.com /netprophet/gas-prices.htm   (1040 words)

  
 1970B   (Site not responding. Last check: 2007-11-01)
On page 19 of this paper it is noted that the price equation is a reduced form equation in that the wage rate is not an explanatory variable in the price equation.
The use of reduced form price equations was popularized by Robert Gordon beginning in the early 1980s (see, for example, Robert J. Gordon, "Comments on George L. Perry, 'Inflation in Theory and Practice,'", Brookings Papers on Economic Activity, 1980, 1, 249-257).
See Chapter 5 in 1976#1 for the first econometric specification of these equations, and see 1997#2 for a recent discussion of how these equations relate to the standard reduced form NAIRU equation.
fairmodel.econ.yale.edu /RAYFAIR/PDF/1970B.HTM   (173 words)

  
 Change for the Better
Price spread from farm to farm results from quality premiums, component levels, where milk is shipped and hauling costs.
price by increasing components or quality and maintain the other parts of the equation, you improve profits.
The profit equation helps you illustrate the potential impact a change can have on profit.
www.dairybusiness.com /northeast/Oct00/changebetter.htm   (1642 words)

  
 Math Equation Parser DLL, Effective Objects - Coordinate Conversion, FFT, Equation Parser, more.   (Site not responding. Last check: 2007-11-01)
If you are looking for a solid equation parsing library to add to your program at a reasonable price, the Equation Parser DLL has the features you need.
Allows several different equation strings to be defined at once, and their structures are maintained separately.
The Equation Parser DLL includes a royalty free license to use in your application.
www.eobj.com /store/catalog/eoeq-dll.html   (303 words)

  
 The IT Outsourcing Price Equation | IT Business Edge
This article breaks the pricing structure down into three parts: how much, how long and what elements need to be priced.
The “how much” portion of the equation is based on what the buyer wants to accomplish, and tends to focus too much on getting more for less.
While low prices are obviously desirable, sometimes achieving performance or quality improvement or reduction of future costs can be even more appealing than a price decrease, this article points out.
www.itbusinessedge.com /item/?ci=16134&pn=rss   (1052 words)

  
 Price's equations, Hamiton's rule, Fisher's fundamental theorem, ESS
Price's equations, Hamiton's rule, Fisher's fundamental theorem, ESS
My take on Price: The equation is very pretty.
equation' is not as fully appreciated as it may one day be.
www.cyclingforums.com /t100314.html   (2897 words)

  
 Looking Under the EA Hood with Price's Equation (ResearchIndex)
Abstract: In this paper we show how tools based on extensions of Price's equation allow us to look inside production-level EAs to see how selection, representation, and reproductive operators interact with each other, and how these interactions affect EA performance.
With such tools it is possible to understand at a deeper level how existing EAs work as well as provide support for making better design decisions involving new EC applications.
98 The schema theorem and Price's theorem - Altenberg - 1995 DBLP
citeseer.ist.psu.edu /689654.html   (322 words)

  
 Macintosh Computer Performance
Upgrade Card Price Drops And The New Price Performance Equation - Price drops by XLR8 on most of their G3 upgrade cards for PCI and Zif slots gives us the chance to run the numbers again.
Sonnet Price Cuts And The New Price/Performance Equation - Sonnet has dropped the prices on most of their CPU upgrade cards so once again we run the performance numbers.
XLR8 has dropped the prices on most of their CPU upgrades up to 20%, so we once again run the numbers for you.
macspeedzone.com /html/hardware/machine/comparison   (6312 words)

  
 A Bid Price Equation For Timber Sales on the Ouachita and Ozark National Forests
A Bid Price Equation For Timber Sales on the Ouachita and Ozark National Forests
Data from 150 timber sales on the Ouachita and Ozark National Forests in Arkansas and southeaster n Oklahoma were used to develop an equation that relates bid prices to timber sale variables.
The sawtimber and pulpwood components of these sales were primarily shor tleaf (Pinus echinata Mill.) pine with some loblolly pine (P.
www.srs.fs.usda.gov /pubs/viewpub.jsp?index=6647   (369 words)

  
 Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
Energy Citations Database (ECD) Document #6553201 - Study of electricity demand and variation in the price elasticity of demand for manufacturing industries
Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
Study of electricity demand and variation in the price elasticity of demand for manufacturing industries
www.osti.gov /energycitations/product.biblio.jsp?osti_id=6553201   (161 words)

  
 The Whole Equation: A History of Hollywood
Product titles shown here may be variations of the product selected.
Products with similar titles may also be listed.
Information about prices and products is provided by third parties and is for informational purposes only.
www.price-compare.net /isbn-0375400168-prices.htm   (234 words)

  
 Visualizing Evolvability with Price's Equation (ResearchIndex)
In this paper we tie these issues to notions of (lack of) evolvability that have been explored in the population genetics community for many years.
In particular, we show how the central equation in Price's Theorem can be extended in such a way as to separate...
0.3: Looking Under the EA Hood with Price's Equation - Jeffrey Bassett Mitchell (2004)
citeseer.ist.psu.edu /672472.html   (196 words)

  
 Financial Costs in the Structural Price Equation: Some Comparisons Between Private and State Enterprises
Financial Costs in the Structural Price Equation: Some Comparisons Between Private and State Enterprises
In the First Part of the Paper, I Discuss the Theoretical Foundations of a Log-Linear, Price Equation Expressed in Terms of Average Costs of Inputs Instead of the Input Prices.
the Main Interest in This Approach Is to Take Into Consideration the Effect of Technological Changes on the Input Shares And, in Particular, the Share of Financial Cost in the Price Equation.
ideas.repec.org /p/mtl/montde/8808.html   (256 words)

  
 NewsFactor Network   (Site not responding. Last check: 2007-11-01)
The Best Time to Buy Everything (Deal of the Day: Personal Finance)
SmartMoney.com “Airlines make major pricing changes (and run fare sales) every week, typically on Tuesday evenings and Wednesday mornings.” (tagged: bargains gooddeals pri...
Micro Pursuasion: Essential Yahoo Search Shortcuts from A to Z
newsfactor.com /news/Mac-Pro-Beats-Dell-Hardware-on-Price/...   (752 words)

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