We propose the savanna theory of happiness, which suggests that it is not only the current consequences of a given situation but also its ancestral consequences that affect individuals’ life satisfaction and explains why such influences of ancestral consequences might interact with intelligence. We choose two varied factors that characterize basic differences between ancestral and modern life – population density and frequency of socialization with friends – as empirical test cases. As predicted by the theory, population density is negatively, and frequency of socialization with friends is positively, associated with life satisfaction. More importantly, the main associations of life satisfaction with population density and socialization with friends significantly interact with intelligence, and, in the latter case, the main association is reversed among the extremely intelligent. More intelligent individuals experience lower life satisfaction with more frequent socialization with friends. This study highlights the utility of incorporating evolutionary perspectives in the study of subjective well-being.

That is from Li and Kanazawa, via Neuroskeptic, file under speculative.

In a working paper released in December 2015, the economists Naima Farah and John R. Boyce find that the discovery and exchange of mammoth tusks is having a serious effect on the market for living elephant tusks. Since the collapse of the Soviet Union, they write, tusks from dead mammoths, found in the frozen Siberian tundra, have risen to account for as much as 20 percent of all ivory production. Crunching the numbers, they conclude, “Mammoth ivory trade may be saving elephants from extinction.” In the long run, however, it may be too optimistic to believe that such a laissez faire solution can forestall wild elephant extinction.

Most of the article, by Greg Rosalsky, deals with how researchers are using data (!) to determine whether woolly mammoths did indeed fall prey to the tragedy of the commons.

*The American Slave Coast*

by on February 11, 2016 at 12:52 am in Books, History, Law, Political Science | Permalink

I very much liked this lengthy but highly readable book by Ned and Constance Sublette, subtitled A History of the Slave-Breeding Industry, and that subtitle does indeed reflect the emphasis.  Here are a few of the things I learned from it:

1. Barbados took in more African slaves than did the entire United States; Alex had a related post on the size of American importation.

2. President James Polk speculated in slaves, based on inside information he obtained from being President and shaping policy toward slaves and slave importation.

3. In the South there were slave “breeding farms,” where the number of women and children far outnumbered the number of men.

4. The price of a slave peaked in his or her late teens.  There was another price spike upwards at about age eight, when child mortality declined.

5. Much of the University of Virginia was built by slaves; is anyone calling for those buildings to be torn down?

6. Quite possibly the sugar plantations model, including for slave deployment, stems from São Tomé, starting in the late 15th century.

7. George Mason wanted to cut off the African slave trade into Virginia, although the authors suggest many people supported this view because they wished to increase the value of the stock of slaves already in the state.  I could not tell whether this was Mason’s motive or not.

8. The Anglo-American settlers of Louisiana were primarily from Kentucky.

9. In the time of slavery, the South was generally considered to be less anti-Semitic toward Jews than the North.

Recommended, here is the Amazon link.  And here is Jason Kottke on the book.  And here is a good Malcolm Harris review.

1. The subtitle is A New Theory of Chinese History, and volume one has just been translated and published from the Chinese.

2. The author, Dingxin Zhao, now is a Professor of Sociology at the University of Chicago.

3. The book has a curious 19th century air to its intellectual influences.  The main argument uses Herbert Spencer to revise Michael Mann, a 20th century British sociologist who wrote on the sources of power.  Lamarckian ideas are deployed frequently.

4. The Western model has had four independent power sources: states, churches, aristocracy, and the urban bourgeoisie.

5. Neither merchants nor religion had much of a strong, independent role in early Chinese politics.  Only the state and the aristocracy were powerful actors.

6. In the model of this book, the dual forces of competition and institutionalization drive historical change.  More than anything else, individuals maximize power.

7. The empowerment of economic power by ideology is the most fundamental feature of modernity.

8. “Three pivotal institutions of Western Zhou origin exerted an enduring impact on the history of China: the Mandate of Heaven, the kinship-based “feudal” system, and lineage law.” (p.79)

This is not an easy work to parse, but it is a book of substance and it reflects a considerable amount of careful thought.

The break in the prison population’s unremitting growth offers an overdue reprieve and a cause for hope for sustained reversal of the nearly four-decade growth pattern. But any optimism needs to be tempered by the very modest rate of decline, 1.8 percent in the past year. At this rate, it will take until 2101 — 88 years — for the prison population to return to its 1980 level.

And this:

Other developments should also curb our enthusiasm. The population in federal prisons has yet to decline. And even among the states, the trend is not uniformly or unreservedly positive. Most states that trimmed their prison populations in 2012 did so by small amounts — eight registered declines of less than 1 percent. Further, over half of the 2012 prison count reduction comes from the 10 percent decline in California’s prison population, required by a Supreme Court mandate. But even that state’s achievement is partly illusory, as it has been accompanied by increasing county jail admissions.

Three states stand out for making significant cuts in their prison populations in the past decade: New York (19 percent), California (17 percent), and New Jersey (17 percent). The reductions in New York and New Jersey have been in part a function of reduced crime levels, but also changes in policy and practice designed to reduce the number of lower-level drug offenders and parole violators in prison. But the pace of reductions in most other states has been quite modest. Moreover, 22 states still subscribed to an outdated model of prisoner expansion in 2012.

There is more here from Marc Mauer and Nazgol Ghandnoosh.

That is the topic of a new paper by Meyer R and Desai SP, here is the abstract:

News of the successful use of ether anesthesia on October 16, 1846, spread rapidly through the world. Considered one of the greatest medical discoveries, this triumph over man’s cardinal symptom, the symptom most likely to persuade patients to seek medical attention, was praised by physicians and patients alike. Incredibly, this option was not accepted by all, and opposition to the use of anesthesia persisted among some sections of society decades after its introduction. We examine the social and medical factors underlying this resistance. At least seven major objections to the newly introduced anesthetic agents were raised by physicians and patients. Complications of anesthesia, including death, were reported in the press, and many avoided anesthesia to minimize the considerable risk associated with surgery. Modesty prevented female patients from seeking unconsciousness during surgery, where many men would be present. Biblical passages stating that women would bear children in pain were used to discourage them from seeking analgesia during labor. Some medical practitioners believed that pain was beneficial to satisfactory progression of labor and recovery from surgery. Others felt that patient advocacy and participation in decision making during surgery would be lost under the influence of anesthesia. Early recreational use of nitrous oxide and ether, commercialization with patenting of Letheon, and the fighting for credit for the discovery of anesthesia suggested unprofessional behavior and smacked of quackery. Lastly, in certain geographical areas, notably Philadelphia, physicians resisted this Boston-based medical advance, citing unprofessional behavior and profit seeking. Although it appears inconceivable that such a major medical advance would face opposition, a historical examination reveals several logical grounds for the initial societal and medical skepticism.

File under “@pmarca bait.”

Hat tip goes to Neuroskeptic.

The men who collect dinosaurs

by on February 4, 2016 at 12:17 am in History, Science | Permalink

‘I’m just starting out as a collector,’ Sebastian begins. ‘I only own prehistoric shark teeth and I have a fossil of a prehistoric squid from way before the dinosaurs, and I got a Utahraptor bone shard I think from my kindergarten teacher, she’s an amateur palaeontologist who first got me into dinosaurs, and I have dinosaur poop but I think you should put in the word “coprolite”. That’s the technical term.’ He thinks some more. ‘Oh, I have mosasaur teeth, that’s a very cool prehistoric aquatic reptile. Imagine owning a T rex though! I would like to own any complete dinosaur, I don’t care which one.’

To my surprise, Sebastian doesn’t see an emotional difference between owning dinosaur toys and owning real dinosaurs, and he hints at a dimensionless state he enters using imagination. ‘If I look at a toy giganotosaurus, it feels the same as looking at a real giganotosaurus, which I have only seen once in a museum. I really see the same thing when I’m looking at my toy. I forget that the real dinosaur is way bigger. My toy is just as big in my mind.’

That is from an interesting Laurie Gwen Shapiro Aeon article, hat tip goes to Anecdotal.

Larry Summers reviews Robert Gordon

by on February 3, 2016 at 9:50 pm in Books, Economics, History | Permalink

Many rightly wonder about mis-measurement of productivity as new products become available and quality improves. Gordon is compelling in arguing that productivity growth is indeed significantly underestimated. He is also more persuasive than I expected in arguing that, if anything, this understatement was greater decades ago than it has been recently. In part this is because there were more of these transformational changes that are inherently hard to assimilate in standard frameworks. In part it is because the statisticians do a much better job than they once did of taking account of quality change.


The question of how to square developments that are large enough to have a major impact on wage and employment patterns with the paucity of measured productivity growth looms for future research.

Do read the whole thing, again my review of Gordon is here.

*Unequal Gains*

by on February 3, 2016 at 9:27 am in Books, Data Source, Economics, History | Permalink

That is the forthcoming book by Peter H. Lindert and Jeffrey G. Williamson, and the subtitle is American Growth and Inequality since 1700.  The sections on recent America, while unobjectionable, are ordinary, but the early coverage of American history is very interesting indeed.  Here is one excerpt:

Why the Old South reversal of fortune?  A benign part of the story seems to have been that the colonial South was still a labor-scarce frontier region with high returns to coastal land producing export crops, like indigo, rice, and tobacco. Its decline after 1774 was echoed in two other frontier cases many decades later.  One was the dramatic relative decline of the West South Central income per capita between 1840 and 1860 — from 60 percent of the U.S. average to just 9.5 percent above it…The other was the loss of the Pacific region’s gold-discovery-generated super-incomes after the 1850s and early 1860s (the Pacific states were 213.3 percent above the US average in 1860, and the mountain states were 30.5 percent above).

I hope to report on other interesting sections of the book soon; it is due out in April.  Again, most business cycles in history have been real business cycles.

Here is the video, the podcast, and the transcript.  Kareem really opened up.  Here is the summary:

Kareem Abdul-Jabbar joins Tyler Cowen for a conversation on segregation, Islam, Harlem vs. LA, Earl Manigault, jazz, fighting Bruce Lee, Kareem’s conservatism, dancing with Thelonious Monk, and why no one today can shoot a skyhook.

Maybe you think of Kareem as a basketball player, but here is my introduction:

Kareem Abdul-Jabbar is one of America’s leading public intellectuals. I would describe him as an offshoot of the Harlem Renaissance, and what he and I share in common is a fascination with the character of Mycroft Holmes, the subject of Kareem’s latest book — and that of course, is Sherlock Holmes’s brother.

Here is Kareem:

I did know Amiri [Baraka]. I think the difference is I believe in what happened in Europe during what they call the Enlightenment. That needs to happen to black Americans, absolutely a type of enlightenment where they get a grasp of what is afflicting them and what the cures are.

I think that the American model is the best in the world but in order to get everybody involved in it we have to have it open to everyone. That hasn’t always been the case.

The most under-appreciated Miles Davis album?

For me [Kareem], the most under-appreciated one is Seven Steps to Heaven. And that shows, I think, Miles’ best group. There’s a big argument, what was Miles’ best group, the one that had Cannonball Adderley, Coltrane, Bill Evans, and Philly Joe Jones and Red Garland or Herbie Hancock, Ron Carter, Tony Williams, and Wayne Shorter?…number two is Porgy and Bess.

He cites Chester Himes as the underappreciated figure of the Harlem Renaissance.  And Kareem thinks like an economist:

It [my instruction] was going well with Andrew Bynum, but Andrew finally got to sign his contract for $50 million, and then at that point Andrew thought that I didn’t know anything and that he didn’t have to listen to me, and we don’t know where Andrew is right now.

Read or hear also his very interesting remarks on Islam, and where its next Enlightenment is likely to come from, not to mention Kareem on the resource curse and of course his new book (and my Straussian read of it).  And Kareem on his favorite movies, starting with The Maltese Falcon.  Self-recommending!


Every year since 2006 more democracies have experienced erosion in political rights and civil liberties than have registered gains, as we find in our annual Freedom in the World report. In all, 110 countries, more than half the world’s total, have suffered some loss in freedom during the past 10 years.

That is from Mark P. Lagon and Arch Puddington at the WSJ.  I would like to see a good theory of how liberty, democracy, and liberalism — or however we wish to characterize that bundle — comove across the globe, in both positive and negative times.

We match individual-level survey data with information on the historical lifeways of ancestors, focusing on Africa, where the transition away from such modes of production began only recently. Within enumeration areas and occupational groups, we find that individuals from ethnicities that derived a larger share of subsistence from agriculture in the pre-colonial era are today more educated and wealthy. A tentative exploration of channels suggests that differences in attitudes and beliefs as well as differential treatment by others, including less political power, may contribute to these divergent outcomes.

That is from a recent paper by Michalopoulos, Putterman, and Weil.  Here are video and ungated versions.

From Foreign Affairs.  Here is my bottom line:

His latest entry into this debate [over stagnation], The Rise and Fall of American Growth, is likely to be the most interesting and important economics book of the year. It provides a splendid analytic take on the potency of past economic growth, which transformed the world from the end of the nineteenth century onward.

In a nutshell, Gordon is probably right about the past, but wrong about the future.  My greatest reservation about the work is that Gordon thinks he can predict future rates of productivity growth with considerable accuracy:

…although Gordon focuses on the demographic challenges the United States faces, he never considers that today, thanks to greater political and economic freedom all over the world, more individual geniuses have the potential to contribute to global innovation than ever before.

…many past advances came as complete surprises. Although the advents of automobiles, spaceships, and robots were widely anticipated, few foretold the arrival of x-rays, radio, lasers, superconductors, nuclear energy, quantum mechanics, or transistors. No one knows what the transistor of the future will be, but we should be careful not to infer too much from our own limited imaginations.

And here is the “oops” aspect of the book:

What Gordon neglects to mention, however, is that he is also the author of a 2003 Brookings essay titled “Exploding Productivity Growth,” in which he optimistically predicted that productivity in the United States would grow by 2.2 to 2.8 percent for the next two decades, most likely averaging 2.5 percent a year; he even suggested that a three percent rate was possible.

…Gordon offers a brief history of the evolution of his views on productivity. Yet he does not mention the 2003 essay, nor does he explain why he has changed his mind so dramatically. He also fails to cite other proponents of the stagnation thesis, even though…their work predates his book.

Nonetheless this is a tract well worth reading.  Again, here is my entire review.

The link is here, the contents include:

A Unit Root in Postwar U.S. Real GDP Still Cannot Be Rejected, and Yes, It Matters: David Cushman examines whether shocks are transitory, permanent, or some of each.

The political ideology of Industrial Relations: Using three metrics, Mitchell Langbert shows the left orientation of the field.

Eli Heckscher’s Ideological Migration Toward Market Liberalism: Benny Carlson explores the intellectual evolution of a great Swedish economist.

Glimpses of Adam Smith: Excerpts from the biography by Ian Simpson Ross.


Classical Liberalism in Econ, by Country: Authors from around the world tell us about their country’s culture of political economy, in particular the vitality of liberalism in the original political sense, historically and currently, with special attention to professional economics as practiced in academia, think tanks, and intellectual networks.

New contributions:

Young Back Choi and Yong Yoon:
Liberalism in Korea

Pavel Kuchař:
Liberalism in Mexican Economic Thought, Past and Present

(All of the papers from this symposium, which has carried across multiple issues of EJW, are collected at this page.)

EJW Audio

David Cushman on Transitory and Permanent Shocks to GDP

Hugo Faria on Venezuela and Liberalism

The subtitle of Thomas Leonard’s new and excellent book is the apt Race, Eugenics & American Economics in the Progressive Era.

I take it you all know by now this is quite an ugly story, namely that both early progressives and late 19th century American economists were often quite appalling racists and eugenicists, and that such racism was built into the professional structure of economics in a fairly fundamental way, including but not restricted to the American Economics Association.

Kevin Drum had an interesting point in response (and do read his full post, there is more to it than this quick excerpt):

Early 20th century progressives supported eugenics out of a belief that it would improve society. Contemporary liberals support abortion rights and right-to-die laws out of a belief in individual rights that flowered in the 60s.

Most of all Drum is saying that the earlier history is not very illustrative of anything for today.

I view it this way.  Go back to Millian liberalism of the mid-19th century.  Had American or for that matter British Progressivism been infused with more of this philosophy, the eugenics debacle never would have happened.  For instance if you look at the British Parliamentary debates of 1912 over the Mental Deficiency Bill, the anti-eugenics forces drew heavily upon Mill for their inspiration.  This was standard stuff, but the Progressives of the time didn’t see much of a pro-liberty reason for being pushed into a Millian position, quite the contrary.

The claim is not that current Progressives are evil or racist, but rather they still don’t have nearly enough Mill in their thought, and not nearly enough emphasis on individual liberty.  Their continuing choice of label seems to indicate they are not much bothered by that, or maybe not even fully aware of that.  They probably admire Mill’s more practical reform progressivism quite strongly, or would if they gave it more thought, but they don’t seem to relate to the broader philosophy of individual liberty as it surfaced in the philosophy of Mill and others.  That’s a big, big drawback and the longer history of Progressivism and eugenics is perhaps the simplest and most vivid way to illuminate the point.  This is one reason why the commitment of the current Left to free speech just isn’t very strong.

I don’t mean to pick on Kevin, who is one of my favorite bloggers, but I disagree (and find indicative) another one of his claims, namely:

…eugenics died an unmourned death nearly a century ago.

To give one (not the only) example to the contrary, Swedish “progressive” sterilization persisted through the 1970s, as was true for Canada as well.  Eugenicist views toward autistic people, among others, remain common across the political spectrum (no special brickbat for Progressives here, but they are guilty too), and with CRISPR a lot of eugenicist debates are already making a comeback.

Do we really want to identify with a general philosophy which embraced eugenics for so many decades, when so many pro-liberty and also social democratic thinkers were in opposition?  I think Mill himself would say no.