Archive for June, 2015

Updated to include two scatter plots

Having examined which states have the most and least libertarians, I’ve decided to do something similar for the 239 populated towns of New Hampshire. Towns are the most important level of local government here, and therefore the degree of libertarian-ness should make some difference to policy at the town level.

The indicators I use for number of libertarians are as follows: percentage of the vote for Gary Johnson and Ron Paul (write-ins) in the 2012 presidential general election (Ron Paul won a nontrivial number of write-ins in New Hampshire); percentage of the vote for libertarianish gubernatorial candidate Andrew Hemingway in the 2014 Republican primary (he got over 37% of the vote); percentage of the vote for Ron Paul in the 2012 Republican primary; percentage of the vote for Ron Paul in the 2008 Republican primary; and the percentage of voters registered “undeclared” (independent). These are all measured at the town level.

As in my research on the states, I use principal component analysis to reduce the correlations among these variables to a single “best” variable expressing their underlying commonality. I also “weight” the observations by population, since New Hampshire has many small towns, where sampling error should be higher (lots of zeroes and high percentages in election results). In fact, weighting the observations this way yields better results, as revealed by the eigenvalue of the first extracted component.

These variables do in fact correlate with each other and all contribute positively, as expected, to the extracted component. The highest scoring coefficient goes to 2012 Paul primary vote (0.55) and the lowest to undeclared registration percentage (0.25).

UPDATE: Here are two charts of Andrew Hemingway 2014 percentage against Ron Paul 2012 percentage, by town. The first limits to towns and cities with at least 700 population, the second to towns and cities with at least 10,000 population. As you can see, the correlation is strong.



And now for the lists of most and least libertarian towns…

Top 10:

Town Score
Richmond 11.2
Grafton 9.4
Wentworth 7.4
Alexandria 6.1
Lyman 6.0
Dorchester 5.7
Marlow 5.6
Clarksville 5.3
Croydon 5.2
Benton 5.1

Most of these are in Grafton County, where I also live. They are all small and rural. The most libertarian large town (over 5000 population) is Plymouth (score of 4.5), a left-leaning college town (also in Grafton Co.). The most libertarian-leaning municipality with a city form of government is Franklin in Merrimack County (score of 2.0). Almost all of the towns where libertarian candidates are most popular are in the west, especially northwest, of the state. Three exceptions are Francestown (5.0), Mason (4.3), Hill (4.0), and New Ipswich (3.9), but even these are west of I-93, which bisects most of the state. The top town east of I-93 is Pittsfield (3.2).

Here are the bottom 10:

Dixville -5.9
Hale's Location -4.7
New Castle -3.9
Rye -3.5
Jackson -3.2
Bedford -3.1
Waterville Valley -3.1
Atkinson -3.0
Stratham -3.0
New London -2.7

Four out of these 10 are in Rockingham County on the seacoast. Dixville and Hale’s Location are truly tiny. Bedford is a staunchly Republican suburb with a population over 20,000. In fact, many of the least libertarian places are well-to-do suburbs that are strongly establishment-Republican (Bedford, New London, Hooksett, Hampstead, Windham).

Examining the towns that are right in the middle of the spectrum will give us a sense of which places are most “representative” in their libertarian-ness. Here are those, filtering down to places with more than 1000 population:

Derry 0.2
Littleton 0.2
Goffstown 0.1
Keene 0.1
Manchester 0.1
Lee 0.0
Chester 0.0
Claremont -0.0
Sandown -0.2
New Boston -0.2

Some of these are not representative of the state in a left-right sense, however. New Boston, Goffstown, Littleton, and Chester are all firmly Republican, while Keene, Lee, and Claremont are if anything even more firmly Democratic. Derry (R-leaning), Manchester (D-leaning), and Sandown (R-leaning) could be considered somewhat representative of the state.

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A few years ago, I did a statistical analysis of which states had the most libertarians, using data from 2004 and 2008 Libertarian Party vote shares and 2008 Ron Paul vote shares and contributions. David Boaz has prodded me to update these numbers in light of the 2012 election. This post does just that.

To come up with a single, valid indicator of how many libertarians are in each state, I use a technique called principal component analysis (PCA), which extracts the vector of data that best explains the correlations among multiple variables. Say I have a number of different measures of the number of libertarians by state. Using PCA, I can convert those different measures into a single measure. A crude way of doing this would be to simply standardize and average all of the different variables, but that method assumes that each variable is an equally reliable measure of the underlying concept. PCA actually tells us which variables are most reliable measures and weights them more heavily.

To see which states have the most libertarians, I use six measures: Libertarian Party presidential vote share in 2008 and 2012, Ron Paul contributions as a share of personal income in 2007-8, Ron Paul and Gary Johnson contributions as a share of income in 2011-12, and “adjusted” Ron Paul primary vote share in 2008 and 2012. Ron Paul vote shares are adjusted for primary vs. caucus, calendar, number of other candidates, and the like (for details see this post). Hawaii and Wyoming are excluded because they did not collect vote shares in the 2008 presidential primary. D.C. is included.

Here are the results of the PCA on these six variables:

. pca resid12 resid08 lp12 lp08 rpcpi08 libcpi12

Principal components/correlation Number of obs = 49
Number of comp. = 6
Trace = 6
Rotation: (unrotated = principal) Rho = 1.0000

Component | Eigenvalue Difference Proportion Cumulative
Comp1 | 2.81582 1.49201 0.4693 0.4693
Comp2 | 1.32382 .517957 0.2206 0.6899
Comp3 | .805859 .266932 0.1343 0.8242
Comp4 | .538928 .0754767 0.0898 0.9141
Comp5 | .463451 .411326 0.0772 0.9913
Comp6 | .0521252 . 0.0087 1.0000

Principal components (eigenvectors)

Variable | Comp1 Comp2 Comp3 Comp4 Comp5 Comp6 | Unexplained
resid12 | 0.1159 0.7527 0.1699 0.3288 0.5308 -0.0354 | 0
resid08 | 0.3400 0.5441 0.1240 -0.3297 -0.6750 0.0934 | 0
lp12 | 0.4360 -0.1868 0.3962 -0.6239 0.4133 -0.2408 | 0
lp08 | 0.3628 -0.3001 0.6360 0.5552 -0.1895 0.1724 | 0
rpcpi08 | 0.5218 -0.0665 -0.4366 0.2925 -0.1052 -0.6604 | 0
libcpi12 | 0.5263 -0.0897 -0.4513 -0.0152 0.2117 0.6828 | 0

“Resid*” is adjusted Ron Paul vote share, “lp*” is LP vote share, and the last two variables are contributions as a share of personal income. What this output tells us is that one single component has lots of explanatory power for the correlations among these six variables: we can interpret this component as the number of libertarians in a state. The method doesn’t give us a number interpretable as an absolute count of libertarians, but a number that we can interpret as representing how many libertarians each state has compared to all the others.

The second table of output shows how each variable contributes to each component. To the first extracted component, the one of interest to us here, the contributions variables actually contribute the most, while adjusted Ron Paul vote shares, especially in 2012, contribute the least. I have found elsewhere that in 2012 Paul did really well in states with lots of liberal voters, as he expanded his base beyond libertarians to antiestablishment liberals and moderates. As a result, his cross-state performance in 2012 isn’t actually a good measure of how libertarian each state is. Still, it contributes a little something to our measure.

Here is the extracted component, with all the states ranked from most to least libertarian:

state libertarians
Montana 5.504036
New Hampshire 4.163368
Alaska 3.586032
New Mexico 3.319092
Idaho 2.842685
Nevada 2.477748
Texas 1.632528
Washington 1.568113
Oregon 1.180586
Arizona 1.0411
North Dakota 0.7316829
Indiana 0.6056806
California 0.5187439
Vermont 0.4731389
Utah 0.2056809
Colorado 0.1532149
Kansas 0.107657
South Dakota 0.0328709
Maine -0.0850015
Pennsylvania -0.2063729
Iowa -0.3226413
Georgia -0.3296589
Virginia -0.3893113
Maryland -0.4288172
Rhode Island -0.470931
Tennessee -0.4882021
Missouri -0.4912609
Arkansas -0.5384682
Louisiana -0.5897537
Nebraska -0.6350928
Minnesota -0.7662109
Michigan -0.7671053
North Carolina -0.811959
South Carolina -0.8196676
Illinois -0.9103957
Ohio -0.9599612
Delaware -1.057948
Florida -1.072601
District of Columbia -1.091851
New York -1.225912
Kentucky -1.330388
Massachusetts -1.342607
Wisconsin -1.410286
New Jersey -1.431843
Connecticut -1.606663
Alabama -1.863769
Oklahoma -1.93511
West Virginia -2.244921
Mississippi -2.519249

Mississippi and West Virginia have the fewest libertarians, while Montana and New Hampshire have the most. Note that Montana and New Mexico will be overstated on this measure, because I have added half of the Montana Constitution Party’s vote share to the Libertarian Party vote share in 2008, because they listed Ron Paul on their general election ballot. No other state had the opportunity to run Ron Paul in the general election, however, so this choice overstates how many libertarian voters are in Montana. But excluding Ron Paul from Montana’s vote share would hurt them because he presumably drew lots of votes away from Bob Barr, the LP candidate, in that state. If I do exclude Ron Paul’s votes entirely from Montana 2008, then New Hampshire ends up just pipping them for most libertarian state. New Mexico is overstated because it is Gary Johnson’s home state, who did very well there both on contributions and on vote share.

These results are quite similar to those I found back in 2010, perhaps unsurprisingly since I included 2008 data on both occasions. Still, there are some small differences. New Hampshire has now easily passed Alaska for the #2 spot. Vermont, Maine, Kentucky, and Texas have gained, while Michigan, Idaho, Indiana, and Georgia have fallen.

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New at e3ne.org, I discuss my conversations with high school students about the moral legitimacy of border restrictions:

We started our discussion with a little bit of improv theatre. I played a foreigner trying to get into the United States without documentation. Students volunteered to play a border guard trying to keep me out. Between us lay an invisible line, the border. I engaged them in a conversation about the moral justification of keeping me out.

To my surprise, the students were more confidently pro-immigration than I was! I played devil’s advocate some and tried to get them to appreciate the nuances of immigration policy.

My view is that borders are morally illegitimate because the state is morally illegitimate. Nevertheless, it can be permissible to use force to stop someone from settling in a particular area when doing so is necessary to safeguard public order or to preserve the minimal conditions for effective political autonomy for the existing communities in that area. For instance, I think it would be permissible for the U.S. government or an American state to prevent a large group of totalitarians from settling on their territory, provided the law does not provide a means for preventing them and their immediate descendants from obtaining citizenship. In a similar way, it would be appropriate for the Israeli government to prevent radical Arab nationalists from settling in their territory en masse. It’s also appropriate to exclude violent criminals, suspected terrorists, invading foreign armies, and, in the context of a welfare state, those unable or unwilling to work.

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