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By new houses I meant houses in the last 20 years, the subset of data they chose to base the chart on.
I know what you meant by new houses. As I said, I really don't think they are basing their chart off of houses in the last 20 years. I can't find anywhere in the paper that they do, I've tried looking, and you haven't explained why you think that.
I know what you meant by new houses. As I said, I really don't think they are basing their chart off of houses in the last 20 years. I can't find anywhere in the paper that they do, I've tried looking, and you haven't explained why you think that.
(Because of small sample sizes, we have had to use the entire data sample to construct these estimates, not just housing built in the past 20 years.)
The first chart (within the actual chart, not the article text), it reads: Annual CO2 Emmissions (in Pounds) per Average household in a Home Less than 20 Years Old.
The first chart (within the actual chart, not the article text), it reads: Annual CO2 Emmissions (in Pounds) per Average household in a Home Less than 20 Years Old.
That's all I can find.
And this line in the article text "Second, we try to estimate the energy use from a typical new home in an area—specifically, one built in the last 20 years—which sometimes means something quite different from an average one. "
and in the actual study pdf there is this line, the one i first quoted "We distinguish between the
emissions of an area’s average house and the emissions of a marginal house by looking
particularly at homes built in the last twenty years."
And this line in the article text "Second, we try to estimate the energy use from a typical new home in an area—specifically, one built in the last 20 years—which sometimes means something quite different from an average one. "
and in the actual study pdf there is this line, the one i first quoted "We distinguish between the
emissions of an area’s average house and the emissions of a marginal house by looking
particularly at homes built in the last twenty years."
yes, I've read that. They separate calculations and separate tables to measure different things. Said exactly that here. If you look at the actual study pdf, the "marginal house" data is only for Table 3. Table 2 and the rest of them do not distinguish by age, unless I've missed something (I've asked for evidence that they do but you never provided that). On the page 15 from the study pdf quote,
We try to correct for individual characteristics, but we do not correct for housing characteristics. After all, we are not attempting to estimate emissions assuming that people in Houston live in New York City apartment buildings. The building sizes in an area are a key component in emissions and we want to include that. Our approach allows for the fact that a household with a fixed set of demographics is likely to live in a larger, newer home if it lived in Houston than it would have chosen if it lived in Boston or New York City, since land prices are higher in the latter cities.
Our approach allows for the fact that a household with a fixed set of demographics is likely to live in a larger, newer home if it lived in Houston than it would have chosen if it lived in Boston or New York City, since land prices are higher in the latter cities.
Quite the assumption, doncha think? I mean, they could probably get data for these cities instead of assuming something that may not be true.
I think I trust Dr. Glaeser more than "Katiana from the Internet".
Fine. "Katiana from the Internet" knows how to evaluate articles found on the internet.
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