Who: Alexander Holtzman
What: Stanford University honors
senior thesis
IRV FactCheck Rating: NOT CREDIBLE
Ranked Choice Voting (RCV) opponent
Terry Reilly has recently been distributing and promoting by email
and news article
a 2012 undergraduate thesis by Alex Holtzman, titled “The
Unanticipated Inequalities of Electoral Reform: Racial and Ethnic
Disparities in Voting Behavior under Oakland's Ranked Choice Voting
Program ”.
As a result of his paper, Holtzman was one of
twenty-eight students awarded Stanford University's Firestone Medal for Excellence in Undergraduate Research
in 2012. Terry Reilly has highlighted the paper in support of RCV repeal efforts in Oakland and San Francisco (both
repeal efforts failed) and to discourage the use of RCV in other parts of
the country.
You can probably look just about
anywhere and find voting behavior differences along some set of
demographic characteristics, regardless of which election method is
being used. However racial and ethnic differences still deserve special
vigilance. But racial and ethnic disparities are generally known to still exist with traditional election methods. So what should be of particular interest in
evaluating RCV implementations is not just whether flaws exist, but how
any flaws have changed, what are the causes of those changes, and what are good ways to mitigate the flaws and
continue the improvements.
Much of Holtzman's quantitative
analysis purports to compare Oakland, California voter turnout data
for the mayoral contests in 2006 and 2010. The 2006 contest used a
traditional June/November runoff system and was won in June; there
was no November runoff. The 2010 contest was decided with one RCV
election in November. In both years, local elections were consolidated with state-wide elections in June and November.
Overall Holtzman finds mixed support
for his hypothesis that an alleged increase in complexity associated
with voting under RCV causes a decline in voter participation,
especially among traditional racial and ethnic minorities. The
effects he finds tend to be small and sometimes don't support his
hypothesis. But a bigger problem is that his quantitative analysis
appears to be seriously flawed from the start.
Holtzman does not actually use any
turnout data from the June 2006 mayoral contest. Instead he uses November
2006 turnout data, when there was no mayoral contest, and compares it
to November 2010 turnout. He also uses overall turnout data for each
election rather than contest-specific data. As a result, he finds
an overall increase in turnout of only 1 percentage point.
There was actually an increase of 14.1 percentage points between the
two mayoral contests (46.0% for June 2006, 60.09% for November 2010,
a 30.6% relative increase).
A quantitative analysis that starts
with grossly erroneous data and understates the overall effect by
more than an order of magnitude (1% vs. 14.1%) just can not provide a
credible analysis of the components of that effect. This problem
with the choice of data spoils both the within-city analysis of
Oakland alone and also the difference-within-difference model that
additionally introduces turnout data from Long Beach, California.
The principle claim that RCV proponents
make about increased turnout, compared to a traditional two-election
runoff system, is not that RCV necessarily brings more voters out to
vote, but that it allows the entire contest to be decided in a single
election that can be scheduled when the most voters are likely to be
voting anyway. RCV helps avoid the one lower-turnout election.
In Oakland, the June primary was the low-turnout election. In San
Francisco, which used a November/December runoff system before
upgrading to RCV, the December runoff was most often the low-turnout
election. By using the wrong data, Holtzman's paper fails to
investigate this claim.
The 2006 versus 2010 mayoral comparison
for Oakland has been written about previously, both overall and by city council district,
showing significant improvements in voter participation. Perhaps
the best overview of how RCV has helped increase voter
participation is a poster produced by
the Ella Baker Center for Human Rights and Oakland Rising.
Holtzman also does a ballot usage
analysis that only looks at the Oakland 2010 mayoral data. However
his analytical framework is flawed and too often he extends his
conclusions beyond what his data shows. Marking a choice for only
one candidate does not mean that the ballot will be exhausted or
that the voter is disenfranchised or confused about RCV. Holtzman
does not investigate actual vote exhaustion rates. Without
comparisons to Oakland's experience with its traditional two-election
runoff system, the results Holtzman does find beg the question of
whether the RCV experience was an improvement. RCV often has lower rates of
exhausted votes than comparable contests using a traditional
two-election runoff system. The advantage tends to grow as the
number of competitive candidates increases and is evident in Oakland.
Because of these and other serious flaws with
the paper, most of the core results should not be relied upon and
likely are significantly wrong. I contacted both Holtzman and his
thesis adviser, Clayton Nall, to share my concerns about the paper.
Both declined to discuss the substance of those concerns.
So Holtzman's undergraduate thesis gets
an overall IRV FactCheck rating of NOT CREDIBLE.
Some of the ancillary results in the
thesis may have some validity, but without a demonstrated comparison
to traditional runoffs and a consideration of compensating effects,
neither those findings nor the thesis as a whole support Terry
Reilly's contention that RCV is a failed reform.