NPS Visitor Use Statistics

Environmental Economics

 The National Park Service provides visitor park statistics. Each park's statistics also include "Visitor Use Counting Procedures," which are a series of PDF files on the methods, which NPS suggests you check to see if a change in procedures could have affected counts.  A while back I was looking for recreation data that I could match to water quality data, particularly in the Gulf. The

2019 100

DataSplash for teaching statistics

Environmental Economics

" and "It Helps You Learn and Tells You What to Write in Your Essay" It took me about 10 minutes to create an account, load some data and estimate a willingness-to-pay regression model:    It's not hard to imagine how much more effective DataSplash will be for teaching statistics relative to Excel. Thomas Stratmann at ( Five Ways to Write a Better Essay ): It’s the end of the semester. Your term paper is due soon.

2016 138

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Trending Sources

Consumption statistics

Green Living Tips

Sometimes it can be difficult to relay to people just how much we consume; particularly those of us in developed countries where we often reach hyperconsumption levels. Here's some fast facts you can bounce off folks to at least get them thinking about their consumption patterns and the associated environmental impact

2009 204

Meat consumption statistics

Green Living Tips

View some interesting meat consumption statistics Do you know how much meat you eat? What about people in other countries? What's the big deal anyway?

2009 145

The cost of a statistical life is.

Environmental Economics

We often to talking about the value of a statistical life (John, why don't we have a primer on VSL in Env-Econ 101?) , but less frequently talk about the cost of saving a statistical life.    So here you go: A U.S. aid program aimed at helping foreign countries battle the AIDS epidemic saved 740,000 lives from 2004-2008, according to a study published Tuesday. The U.S.

2012 142

A comment on Balmford et al. "The Value of Statistical Life for Adults and Children."

Environmental Economics

2019) , in the context of estimating the value of a statistical life (VSL), say (emphasis added): Concerns regarding responsiveness to scope in CV studies are not novel; indeed, instances of scope insensitivity are widespread within the literature (Ojea and Loureiro, 2011). "The Value of Statistical Life for Adults and Children: Comparisons of the contingent valuation and chained approaches."  Bamford et al.

2019 100

This newspaper needs to take business and economic statistics II

Environmental Economics

Every Appstate business graduate could figure this one out: A consultant to the state lottery said in a recent report that spending on ads is “highly related” to sales. Recent figures in North Carolina don’t bear that out. For example, ad spending jumped by 17 percent from the 2009-10 fiscal year to the next. But sales increased only 2.8 percent. The next year, ad sales increased by a more modest 6.5 percent, but gross sales jumped by nearly 9 percent.

2014 138

Tweet of the day: Why everyone (including @realDonaldTrump) needs to understand statistics 101

Environmental Economics

2017 122

More on the American Statistical Associations's 6 principles for the use of p-values

Environmental Economics

era, sound statistical analysis will still be important, but no single numerical value, and certainly not the p-value, will substitute for thoughtful statistical and scientific reasoning. p=0.0168), not discrete (p<0.05), and the quickest way to get an idea about statistical significance from computer output. However, during the actual conduct of statistical testing, this advice is not often heeded. a t-statistic of 1.37

2016 116

The American Statistical Association sets out six principles for proper use of P-values (And you won't believe #2 or #4)*

Environmental Economics

Via Retraction Watch: After reading too many papers that either are not reproducible or contain statistical errors (or both), the American Statistical Association (ASA) has been roused to action. Here are the six principles from the ASA statement:   P-values can indicate how incompatible the data are with a specified statistical model. A p-value, or statistical significance, does not measure the size of an effect or the importance of a result.

2016 149

But always keep a laser-like focus on statistical significance (p < 0.05)

Environmental Economics

Advice from one of the editors of REStat  (and University of Kentucky PhD): Free Advice to Economists: When you put up regression tables, take a single coefficient and use it in a sentence in English. Amitabh Chandra (@amitabhchandra2) February 7, 2017

2017 100

Visualized public statistics

The Green Changemakers

[link] [link].

2010 40

Statistic of the decade: 8.4 million soccer fields of land deforested in the Amazon


View original here: Statistic of the decade: 8.4 That’s equivalent to about 10.3 million American football fields. million soccer fields of land deforested in the Amazon. Business Green about-10-3 brazil engage-with football-fields important-for leadership names in the news policy & politics

2020 28

Skittles, Risk and Statistics

Green Prophet

I’m going to thank Donald Trump Jr. for providing a simple way to visualize our decisions regarding human refugees. He said that we should pretend that “those people” are skittles, not someone we could ever imagine being a loved-one– capable of thought, compassion, joy and loss as we believe of ourselves.In

2016 68

UK's Leading Solar Energy Website Releases New Statistics Showing Why Solar is Still Worth the Investment

Green (Living) Review

Solar panels have been one of the most successful renewable energy sources for individual households in the UK, with government estimates suggesting that nearly 4 million UK households will have solar panels fitted by 2020. This optimistic statement came as the government were preparing to cut back subsidies for homes using solar energy and shows that the government at least, don’t think that homeowners will be deterred by the cut in Feed-In Tariffs (FiT).

2012 100

How not to do statistics lesson of the day (courtesy of @DonaldJTrumpJr)

Environmental Economics

Test question*: Consider a class of 10 people taking a statistics test.  That's how STATISTICS works.   The scores of those 10 people are: 50%, 52%, 55%, 55%, 60%, 65%, 75%, 75%, 95%, 100%. A) What is the average test score? B) What is the median test score? C) How many people scored below the average? D) How many people scored below the median? Apparently, Donald Trump Jr.    would fail this test. Correct answers: a) 68.2%. b) 60%<Median<65%.

2017 122

U.S. hotels rank 7th in being green, survey says

Green Traveler Guides

Hotels News green hotels Green Travel News green travel statistics green travel trends ReutersHoteliers around the globe were asked if they have eco-friendly practices in place, and 81 percent of U.S. hotel respondents said they do—scoring only seventh in the world. The top six green hotel destinations U.S. hotels rank 7th in being green, survey says is a post from: Green Traveler Guides.

2012 152

Environmental Economics: Join the fishery management team today!

Environmental Economics

Below you'll find a request-to-post a call for participants in the Scientific and Statistical Committee for the Gulf of Mexico Fishery Management Council from the inbox. Gulf of Mexico Fishery Management Council Recruiting for its Scientific and Statistical Committees, Stock Assessment Panels, and Socioeconomic Panel The Gulf of Mexico Fishery Management Council is soliciting applications for seats currently available on its Standing and Special Scientific and Statistical Committees.

Climate Week: people cut back on vehicle fuel but not air travel or gas

Green (Living) Review

Households have cut back on vehicle fuel over the past decade, but not on gas and air travel, according to analysis published today by the Office for National Statistics. Climate Week Office for National StatisticsThe release, published to mark the start of Climate Week (4 to 8 March 2013), shows: · Use of vehicle fuel remained relatively flat between 2002 and 2007 before falling 24% per head in the next five years. · Air travel increased by 13% between Q3 2002 and Q3 2012.

2002 101

Walker Says that "Job Creators" Will Be Back After the Recall | PR.

PR Watch

According to the US Bureau of Labor Statistics, Wisconsin was the only state in the country to have statistically significant job losses in the past year. Skip to Main Content Area. Contact Us. News Feeds. Podcasts. Privacy Policy. RSS Feeds. Volunteer. Optional Member Code. Sign up. Reports Lisa Graves. Mary Bottari. Brendan Fischer. Rebekah Wilce. Harriet Rowan. Contributing Writers Beau Hodai. Jill Richardson. Wendell Potter. Will Dooling. Take Action. Latest News.

2012 64

Landfills nearly at capacity

Green (Living) Review

by Michael Smith (Veshengro) According to the ONS (Office of National Statistics) we have less than 7 years landfill capacity left in the UK. landfills Office of National Statistics waste management waste waste reductionThe fact is that some areas have no capacity left, SE England only 3 years or so capacity left. This information was distributed by Tweeter @earthexchange (Alex Albon) from Cheshire, UK, and I would not doubt this one bit.

A corporate water strategy manifesto: We can and will do better


The statistics on water scarcity, poor quality, inequity and lack of access to safe drinking water, sanitation and hygiene remain appalling and unacceptable. Most important, the statistics on water scarcity, poor quality, inequity and lack of access to safe drinking water, sanitation and hygiene remain appalling and unacceptable. Business Eco Green answers digital electric front sdg statistics stockton-mayor water-scarcity- zev

2020 28

Scary Food Waste Statistics: An Infographic

Green Living Ideas

Did you know that across the world people waste almost HALF of their food? This means that HALF the food grown by farmers, HALF the food shipped across the globe, HALF the food in the grocery store and HALF the food you purchase ends up wasted. Shocking, right?

Waste 56

KFC confirms suppliers’ chickens suffer from footpad dermatitis


KFC executives chose to lay the statistics bare so that they can make improvements and keep tracking the progress in the future. Green a-pretty-strong condition data health kfc spotlight statistics utensilsA recent report released by fast-food giant KFC shows that three out of 10 chickens sold by the restaurant suffer from footpad dermatitis. This is a condition typically caused by keeping chickens in a poorly ventilated environment or a lack of proper hygiene.

The Latest Great Clean Energy News - Compass

Sierra Club Compass

Clean energy and clean air lovers hooted and hollered yesterday when the American Wind Energy Association announced some outstanding 2012 wind power statistics - namely this one: Wind was the top new energy source to come online in 2012. Compass. « Cars and Refrigerators Can Work Together | Main. Saving Money with Solar and Energy Efficiency in Southern California » The Latest Great Clean Energy News.

Quotes of the day

Environmental Economics

Mickey Copeland Statistics Compiler. As a nation, we’re doing a terrible job of manipulating statistics.”. America's Finest News Source: According to a new report from the National Oceanic and Atmospheric Administration, July was the hottest month since recordkeeping began in 1880, averaging 1.46 degrees hotter than the July average and beating the previous record-setting month by.14 degrees. What do you think?

2015 155

Most everyone thinks they'll get ripped off by a carbon tax with revenue recycling

Environmental Economics

Rainy days and Mondays always get me down: On Monday, researchers from Yale and Utah State University unveiled a new statistical technique that allows an in-depth accounting of Americans’ attitudes toward global warming. The resulting maps —down to the county level—reveal some interesting takeaways. via Here is my favorite

2015 172

Reply to "Reply to Whitehead" by Desvousges, Mathews and Train (an introduction)

Environmental Economics

It is well-known that confidence intervals can overlap and yet the t-statistic for the test will indicate that the difference in means is statistically different. The mistake that I made was not checking the t-statistic.

2020 202

Domestic drilling and gasoline prices

Environmental Economics

oil production, the Associated Press finds no statistical correlation between how much is pumped out of the ground and how much is paid at the pump. production goes up, the price of gas "is certainly not going down," said New York University statistics professor Edward Melnick. "The " AP's statistical analysis examined monthly, inflation-adjusted prices and production from the Energy Department stretching back to January 1976, when they were first recorded.

2012 162

Reply to "Reply to Whitehead" by Desvousges, Mathews and Train: (4) My treatment of the weighted WTP is biased in favor of the DMT (2015) result/conclusion

Environmental Economics

Given the statistical uncertainty of the WTP estimate, it is impossible to conduct any sort of hypothesis test with these data.  the cost coefficient is not negative and statistically different from zero). DMT (2020) draw attention to my treatment of the weighted WTP estimates.

2020 141

Recommended reading: Another important VSL paper

Environmental Economics

Monetizing Bowser: A Contingent Valuation of the Statistical Value of Dog Life. An important shadow price in the analysis of policies affecting human mortality is the value of statistical life (VSL), which is imputed from how people make decisions involving tradeoffs between small mortality risks and other goods. Why not? Deven Carlson, Simon Haeder, Hank Jenkins-Smith, Joseph Ripberger  Abstract. Households in the USA spend about $70 billion annually on pets.

2019 100

Reply to "Reply to Whitehead" by Desvousges, Mathews and Train (the correction)

Environmental Economics

830) In Whitehead (2020) I used the Delta Method confidence intervals in my statistical tests. In each model the constant and the coefficient on the cost amount are statistically different from zero.

2020 141

Cherry-picking empirical results: is it really worth it?

Environmental Economics

Yes to this : A sloppy attitude towards statistics has led to exaggerated and unjustified claims becoming commonplace in science, according to one of Britain’s most eminent statisticians. Speaking ahead of his president’s address to the Royal Statistical Society, Prof Sir David Spiegelhalter, said that questionable practices such as cherry-picking data and “hacking statistics” to make findings appear more dramatic threatens to undermine public trust in science. “We’re

2017 109

Corrigendum: A Comment on “An Adding Up Test on Contingent Valuations of River and Lake Quality”

Environmental Economics

Only two of the five coefficients (B) on the bid variable are statistically significant at the p=.10 Any use of a two-tailed test to argue that statistical results are as statistically significant as they seem when a one-tailed test is more appropriate is overly harsh.  The only statistically significant difference in the yes responses at different cost amounts is between $80 and $125.

2016 122

Whither t = 1.92?

Environmental Economics

Publication bias exists if journal referees and editors tend to reject papers that exhibit statistically insignificant results than the same quality papers with statistically significant results, where statistically significant is defined as a 95% chance that your regression coefficient is not equal to zero. Here is a picture of spike in t-statistics a little greater than 1.96

2012 116

I'm printing this one out right now

Environmental Economics

"Retrospectives: The Cold-War Origins of the Value of Statistical Life." This paper traces the history of the "Value of Statistical Life" (VSL), which today is used routinely in benefit-cost analysis of life-saving investments. The "value of statistical life" terminology was introduced by Thomas Schelling (1968) in his essay, "The Life You Save May Be Your Own." Any revision of this paper will include a citation to: Banzhaf, H Spencer. 2014. "Retrospectives:

2014 132

"How does a Nobel-prize-winning economist become a victim of bog-standard selection bias?"

Environmental Economics

But a lot of people with classical statistics and econometrics training don’t realize this: they thing regression coefficients are unbiased estimates, but nobody ever told them that the biases can be huge when there is selection for statistical significance. And, remember, selection for statistical significance is not just about the “file drawer” and it’s not just about “p-hacking.” Andrew Gelman: Again, I’m not saying that Heckman and his colleagues are doing this.

2017 109

"Should papers be retracted if one of the authors is a total a **e?"

Environmental Economics

Hoover had a paper on molecular dynamics rejected by two journals the Journal of Statistical Physics. The Journal of Statistical Physics accepted it. Retraction Watch: When science writer Vito Tartamella noticed a physics paper co-authored by Stronzo Bestiale (which means “total a **e” in Italian) he did what anyone who’s written a book on surnames would do: He looked it up in the phonebook. What he found was a lot more complicated than a funny name.

2014 171

Do you know an editor at a top general interest journal?

Environmental Economics

" Review of Economics and Statistics, April 10, 2017 Then your publication chance is much lower: Abstract: This paper employs a unique dataset on articles, authors and editors of the top general interest journals in economics to investigate the role of social connections in the publication process. Ties between editors and authors are identified based on their academic histories.

2017 150

A note of caution to anyone thinking about writing a textbook

Environmental Economics

Andrew Gelman: Dear Major Academic Publisher, You just sent me, unsolicited, an introductory statistics textbook that is 800 pages and weighs about 5 pounds. And, the worst thing is, this isn’t even your only introductory statistics book! I like them as a continuous measure of statistical significance, I don't see anything special about the.01,05 and.10 is not statistically significant. It is statistically significant at the p = 0.08

2016 109

Help Support Federal Data!

Environmental Economics

Click here to find a draft letter asking members of Congress to support and fund Federal statistics. From "The Association of Public Data Users": With a new Congress and Administration, it is important to reiterate to policymakers the importance of federal data programs. In order to make as large an impact as possible, we encourage respected leaders in the business, policy, and academic communities to sign the letter and demonstrate their support.

2017 109

Tim's dream job?

Environmental Economics

  It’s an interesting story, delving into the O’s current success, Walters’ statistical contributions, and the history of his interest in the game. Skip Sauer at The Sports Economist: The Baltimore Sun reports on one of our own , economist Stephen Walters, who runs some numbers for his hometown Baltimore Orioles.  via You may ask, why didn't you send this as a private email to Tim? Good question

2012 139

I took the bait

Environmental Economics

The statistical model that predicts collapse is very simple with a flow variable (collapsed fisheries that varies from year to year) regressed on a stock variable (cumulative number of years in the time series data). My results aren't as impressive as those in the papers but it indicates a statistically significant relationship. From a reporter: What I'm interested in is: 1. Your reaction to the study.

2014 148