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Thursday, June 29, 2006
sorry I've been gone awhile but . . .
we bought a house and you know what type of work that takes. anyway, I'll be back after the fireworks on the 4th of July but if you haven't checked out www.checkout.google.com . . . do so
Sunday, June 18, 2006
economic theory . . . eh?
Any given economic theory will perfectly describe the world as long as you agree with the underlying assumptions. More often than not, however, the underlying assumptions take us from the real world into a world of, well, theory.
Thursday, June 15, 2006
Real Estate values and the CPI - rental equivalence explained
Rental Equivalence--Background
Until the early 1980s, the CPI used what is called the asset price method to measure the change in the costs of owner-occupied housing. The asset price method treats the purchase of an asset, such as a house, as it does the purchase of any consumer good. Because the asset price method can lead to inappropriate results for goods that are purchased largely for investment reasons, the CPI implemented the rental equivalence approach to measuring price change for owner-occupied housing. It was implemented for the CPI-U in January 1983 and for the CPI for Urban Wage Earners and Clerical Workers (CPI-W) in January 1985.
Rental equivalence. This approach measures the change in the price of the shelter services provided by owner-occupied housing. Rental equivalence measures the change in the implicit rent, which is the amount a homeowner would pay to rent, or would earn from renting, his or her home in a competitive market. Clearly, the rental value of owned homes is not an easily determined dollar amount, and Housing survey analysts must spend considerable time and effort in estimating this value.
When initially introduced, the rental equivalence index’s monthly movement was calculated by reweighting the rent sample to represent owner-occupied units. Starting with the CPI for January 1987, the rental equivalence index movement was based on changes in the implicit rents of a sample of owner-occupied units. As part of the 1987 revision, BLS drew a new housing sample to replace the old rent sample. The new sample had both owner- and renter-occupied housing units. To estimate the change in the implicit rents of the owners, the CPI:
* Estimated initial implicit rents by asking the CPI data collectors to work with the owners themselves to estimate the units’ potential rent.
* Measured the change in implicit rents over time by matching owner units to renter units with similar characteristics. The characteristics included location, structure type, and other general traits such as age, number of rooms, and type of air conditioning.
* Derived the change in the implicit rent for each owner unit in the sample from the change in the actual rents of its matched set of renters. Because owners pay for utilities separately, the CPI calculated the pure rent of the matched renters by removing the value of any landlord-provide utilities and furniture. The implicit rents of the owner units were moved by the changes in the pure rents of the matched renters.
* Moved the rental equivalence index by the average changes in the implicit rents of the owner units.
In 1997, BLS started the process of developing a new housing sample to replace the one that had been in use since 1987, and began using it starting with the index for January 1999. BLS dropped the owner sample and returned to the method that was used for the rental equivalence index when it was first introduced, that is, reweighting the renter sample to represent owner-occupied units.
This decision was made for several reasons:
* Moving implicit rents by matching renter and owner observations is inherently a reweighting of the rent sample.
* A large portion of the 1987 sample was devoted to owners, to support the estimation of initial implicit rent. By dropping the owner sample, the field staff would not have to initiate, price, and maintain an owner sample.
* Because owner-renter matching is not needed for rental equivalence, the calculation of the index would be greatly simplified.
you can learn more at the Bureau of Labor Statistics website
Until the early 1980s, the CPI used what is called the asset price method to measure the change in the costs of owner-occupied housing. The asset price method treats the purchase of an asset, such as a house, as it does the purchase of any consumer good. Because the asset price method can lead to inappropriate results for goods that are purchased largely for investment reasons, the CPI implemented the rental equivalence approach to measuring price change for owner-occupied housing. It was implemented for the CPI-U in January 1983 and for the CPI for Urban Wage Earners and Clerical Workers (CPI-W) in January 1985.
Rental equivalence. This approach measures the change in the price of the shelter services provided by owner-occupied housing. Rental equivalence measures the change in the implicit rent, which is the amount a homeowner would pay to rent, or would earn from renting, his or her home in a competitive market. Clearly, the rental value of owned homes is not an easily determined dollar amount, and Housing survey analysts must spend considerable time and effort in estimating this value.
When initially introduced, the rental equivalence index’s monthly movement was calculated by reweighting the rent sample to represent owner-occupied units. Starting with the CPI for January 1987, the rental equivalence index movement was based on changes in the implicit rents of a sample of owner-occupied units. As part of the 1987 revision, BLS drew a new housing sample to replace the old rent sample. The new sample had both owner- and renter-occupied housing units. To estimate the change in the implicit rents of the owners, the CPI:
* Estimated initial implicit rents by asking the CPI data collectors to work with the owners themselves to estimate the units’ potential rent.
* Measured the change in implicit rents over time by matching owner units to renter units with similar characteristics. The characteristics included location, structure type, and other general traits such as age, number of rooms, and type of air conditioning.
* Derived the change in the implicit rent for each owner unit in the sample from the change in the actual rents of its matched set of renters. Because owners pay for utilities separately, the CPI calculated the pure rent of the matched renters by removing the value of any landlord-provide utilities and furniture. The implicit rents of the owner units were moved by the changes in the pure rents of the matched renters.
* Moved the rental equivalence index by the average changes in the implicit rents of the owner units.
In 1997, BLS started the process of developing a new housing sample to replace the one that had been in use since 1987, and began using it starting with the index for January 1999. BLS dropped the owner sample and returned to the method that was used for the rental equivalence index when it was first introduced, that is, reweighting the renter sample to represent owner-occupied units.
This decision was made for several reasons:
* Moving implicit rents by matching renter and owner observations is inherently a reweighting of the rent sample.
* A large portion of the 1987 sample was devoted to owners, to support the estimation of initial implicit rent. By dropping the owner sample, the field staff would not have to initiate, price, and maintain an owner sample.
* Because owner-renter matching is not needed for rental equivalence, the calculation of the index would be greatly simplified.
you can learn more at the Bureau of Labor Statistics website
Wednesday, June 14, 2006
on economists
"If all the economists in the world were laid end to end, it wouldn't be a bad thing."
-- Peter Lynch
-- Peter Lynch
Saturday, June 10, 2006
Charlie Munger quote
in case you don't know who Charlie Munger is, he's Warren Buffet's partner at Berkshire Hathaway . . . now here's a great quote from CM
"The harder you work on something, the more confidence you have in it. But you might be working on something you aren't good at."
"The harder you work on something, the more confidence you have in it. But you might be working on something you aren't good at."
Thursday, June 08, 2006
Ron Howard
a conversation with Ron Howard reveals :
Who are your favorite writers? The Daily Show with Jon Stewart staff.
Who is your favorite hero of fiction? R.P. McMurphy, of One Flew Over the Cuckoo's Nest.
Which historical figure do you most identify with? Lenny Wilkins. A long career as a point guard, a longer career as a head coach.
Who are your favorite writers? The Daily Show with Jon Stewart staff.
Who is your favorite hero of fiction? R.P. McMurphy, of One Flew Over the Cuckoo's Nest.
Which historical figure do you most identify with? Lenny Wilkins. A long career as a point guard, a longer career as a head coach.
Wednesday, June 07, 2006
Dead Reckoning
Captains of the 15th, 16th and 17th centuries used to determine their position at sea (distance east or west of home port) by this method. The captain would throw a log overboard and observe how quickly the ship receded from the temporary guidepost. He noted the crude speeedometer reading in his ship's logbook, along with the direction of travel, which he took from the stars or a compass, and the length of time on a particular course, counted with a sandglass or a pocket watch. Factoring in the effects of ocean currents, fickel winds and errors in judgment he then determined his longitdue. Too often, the technique of dead reckoning marked him for a dead man.
Before the invention of the ship's clock by John Harrison in 18th century, ship's captains really didn't know where they were longitudally . . . . this is interesting when you think about Magellan circumnavigating the globe.
Before the invention of the ship's clock by John Harrison in 18th century, ship's captains really didn't know where they were longitudally . . . . this is interesting when you think about Magellan circumnavigating the globe.
Tuesday, June 06, 2006
should we be worried about a Democratic congress ?
from thestreet.com's Jim Cramer . . . . mostly he's brilliant, forget the Mad Money persona
here's his take this morning
Random musings: Guess we should be panicked that the House of Representatives might go Democratic. Sell the drug stocks. Be ready for big spending. You can bet that the budget will no longer be balanced and that federal borrowing will spike. Oops! That all happened under the Republicans, didn't it? The papers are trying to sow fear about the Republican agenda, but to me the agenda has been everything that could possibly be reckless for the dollar and stock markets, except the dividend tax cut. We have experienced an unprecedented spending binge, one that has helped make U.S. markets among the worst in the world. I don't fear a Democratic turn in the House. We had two-party government with Clinton and it worked great. Frankly, all we want out of Washington is that they do nothing at this point, and a gridlocked Congress is a recipe for exactly that. I am hoping it happens. That way we take Washington out of the equation. Good riddance!
here's his take this morning
Random musings: Guess we should be panicked that the House of Representatives might go Democratic. Sell the drug stocks. Be ready for big spending. You can bet that the budget will no longer be balanced and that federal borrowing will spike. Oops! That all happened under the Republicans, didn't it? The papers are trying to sow fear about the Republican agenda, but to me the agenda has been everything that could possibly be reckless for the dollar and stock markets, except the dividend tax cut. We have experienced an unprecedented spending binge, one that has helped make U.S. markets among the worst in the world. I don't fear a Democratic turn in the House. We had two-party government with Clinton and it worked great. Frankly, all we want out of Washington is that they do nothing at this point, and a gridlocked Congress is a recipe for exactly that. I am hoping it happens. That way we take Washington out of the equation. Good riddance!