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Guns and votes authorsDespite support from around 90 percent of US citizens in the wake of 2012’s Sandy Hook School shooting, expanded background checks for gun purchases failed in the US Senate. Laurent Bouton, Paola Conconi, Francisco J Pino, and Maurizio Zanardi write that this ‘gun-control paradox’ can be explained by the fact that the intensity of voters’ preferences differs across policy issues, and voters only have one vote with which to hold politicians accountable on a bundle of issues. A model incorporating these features predicts Senate voting behaviour very well, finding that Senators closer to re-election are more likely to vote pro-gun, and only Democrats ‘flip-flop’ on guns.

On 14 December 2012, 20 children and six staff members were murdered in a shooting at Sandy Hook Elementary School in Newtown, Connecticut. Building on the surge in public support for gun control that followed this tragedy, President Obama announced the formation of a task force to provide immediate recommendations on how to introduce new gun regulations to end the “epidemic of gun violence shaking the nation.”

A year has passed and Congress has been unable to introduce stricter gun regulations, despite broad public support. As pointed out by The Economist:

“when the push for more gun control began shortly after the Newtown shootings last December, the focus fell on three areas: assault weapons, high-capacity magazines and background checks. But the enthusiasm for new gun laws quickly faded, and it became obvious that efforts to ban assault weapons and high-capacity magazines would not win enough votes to pass. So gun-control advocates were left to pursue an expansion of the background-check system. In the end, even that was too ambitious.”

Credit: Elvert Barnes (Creative Commons BY SA)

Credit: Elvert Barnes (Creative Commons BY SA)

On 17 April 2013 even the mild effort to require background checks on private sales at gun shows and online failed in the Senate. This may seem surprising, given that all polls carried out at the time showed that a vast majority of US citizens supported this measure. As President Obama put it: “How can something have 90% support and yet not happen?”.

Explaining the gun-control paradox

The reluctance of US congressmen to support gun-control regulations, despite the fact that most US citizens are in favour of them, has long been a puzzle. Schuman and Presser (1978) referred to this puzzle as the “gun-control paradox”. As argued by Goss (2006), one possible explanation is that “American gun owners are intense, well organized, and willing to vote for or against candidates purely on the basis of their position on gun control”. They are a “highly motivated, intense minority”, who prevail over a “relatively apathetic majority”.

In a recent paper, we formalise this idea and provide empirical evidence that electoral incentives lead politicians to take a pro-gun stance, in line with the interests of a minority of the electorate. We propose a theoretical model in which politicians vote on a primary and a secondary policy issue. The former is an issue that a majority of voters cares relatively more about, such as the level of public spending. The latter is meant to capture gun control – an issue that a minority cares more intensely about. The minority may also be better-informed about the incumbent’s choices on the secondary policy issue. In this setting, citizens have only one vote to make their representatives accountable on a bundle of policy issues. Politicians may thus pander to the minority on the secondary issue, without losing too much support from the majority. The model delivers three testable predictions:

  • First, politicians should be more likely to take a pro-gun stance at the end of their terms, when their policy choices have a bigger impact on their re-election prospects.
  • Second, only politicians who are in favour of gun regulations and are concerned with re-election should ‘flip-flop’ on gun control, since they face a tension between their policy preferences and their re-election motives.
  • Finally, election proximity should have no impact on the voting behaviour of politicians who are against gun regulations and/or are not concerned about re-election.

Voting behaviour in the US Senate

To assess the validity of these predictions, we examine the determinants of Senate votes on gun regulations over the period 1993–2010. The staggered structure of the US Senate – in which members serve six-year terms and a third is up for re-election every two years – provides a quasi-experimental setting to verify whether election proximity affects the voting behaviour of politicians on gun-related legislation. For any given vote, we can compare the behaviour of senators belonging to three different ‘generations’, i.e. who will be up for re-election at different times.

In line with the model predictions, we obtain three main results:

  • First, the oldest generation of senators (i.e. those facing re-election within two years) is more likely to vote pro-gun than the previous two.

The effect is sizeable, and robust to using different econometric methodologies and samples of votes, and to including a wealth of controls for other drivers of senators’ voting behaviour on gun control. The pro-gun effect of election proximity continues to hold when, rather than exploiting variation in the voting behaviour of different senators, we study the behaviour of individual senators over time.

  • Second, only Democratic senators flip-flop on gun control – in the last two years of their term, the probability that they vote pro-gun increases by between 15.3 percent and 18.9 percent.
  • Finally, election proximity has no impact on the voting behaviour of senators who are not concerned with re-election, either because they are retiring or because they hold very safe seats.

Our results of the determinants of gun-control votes can help understand why Congress has not introduced stricter gun regulations in the wake of the tragedy in Newtown, despite overwhelming public support. Our empirical model does indeed predict the failure of the Senate to pass the Manchin–Toomey amendment on background checks last April. Based on our estimates for the period 1993–2010, we would have correctly predicted 93 out of 99 senators’ votes on the Manchin–Toomey amendment on 17 April 2013, excluding the Majority Leader Harry Reid, who voted against the amendment for procedural reasons. The Senate came short of the 60 votes needed to overcome a filibuster and move ahead with the legislation. Our predicted margin (51–48) is very close to the actual one (53–46), again excluding Harry Reid.

In representative democracies, policy choices often diverge from what the majority of the electorate wants. Our analysis suggests a twofold explanation:

1. Voters differ in the intensity of their preferences over different policy issues; and
2. They only have one vote to make their representatives accountable on a bundle of issues.

Obviously, financial pressure by lobby groups can also contribute to the lack of congruence between politicians’ choices and the preferences of the majority. Indeed, our empirical results confirm that senators who receive larger amounts of campaign contributions from gun-rights lobbies are more likely to take a pro-gun stance. Still, financial pressure by lobby groups cannot account for the pro-gun effect of election proximity on senators’ voting behaviour – even after controlling for the contributions received by individual senators throughout their terms, we find that they are more likely to vote pro-gun when they are closer to facing re-election. The power of gun-rights lobbies like the NRA may thus not only lie in their deep pockets, but also in the fact that their members are single-issue voters.

In principle, citizens’ initiatives could help to achieve better congruence between citizens’ preferences and policy outcomes, by unbundling different policy issues. In particular; stricter gun controls could be introduced in US states that allow ordinary citizens to place new legislation on a ballot for approval or rejection. For example, the Washington Universal Background Checks for Gun Purchases Initiative, also known as Initiative 594, may appear on the 4 November 2014 ballot in the state of Washington. If approved by voters, the measure would require background checks to be run on every person purchasing a gun in the state of Washington – even those who are doing so via private sales. However, even in the case of citizens’ initiatives, the intensity of voters’ preferences matters. For instance, organising initiatives is very costly both in terms of time and money, and citizens who strongly oppose gun regulations may be more willing to incur such costs. In addition, pro-gun citizens may be more willing to incur the costs of voting (e.g. spending time to register, rearranging work schedules, getting to the polls, and gathering information on the candidates). Thus an intense minority can still prevail over an apathetic majority.

This article originally appeared at VoxEU.

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Note:  This article gives the views of the authors, and not the position of USApp– American Politics and Policy, nor of the London School of Economics.

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About the authors 

Laurent Bouton 80x108Laurent Bouton – Georgetown University
Laurent Bouton is an Assistant Professor of Economics at Georgetown University, Associate Fellow at the European Center for Advanced Research in Economics and Statistics (ECARES), and Faculty Associate at the Institute for Economic Development (IED), Boston University. His main fields of interest are political economy, microeconomics, and public economics.

Paola Conconi 80x108Paola Conconi – European Center for Advanced Research in Economics and Statistics (ECARES)
Paola’s main research interests are in the areas of international trade and political economy. Paola holds a B.A. in Political Science from the University of Bologna, an M.A. in International Relations from the School of Advanced International Studies of Johns Hopkins University, and a M.Sc. and a Ph.D. in Economics from the University of Warwick. She is FNRS Research Associate at the European Center for Advanced Research in Economics and Statistics (ECARES) of the Université Libre de Bruxelles (ULB) and Research Fellow of the Centre for Economic Policy Research (CEPR).

Francisco J Pino 80x108Francisco J Pino – Université Libre de Bruxelles
Francisco Pino is a post-doctoral researcher at the European Center for Advanced Research in Economics and Statistics (ECARES) of the Université Libre de Bruxelles (ULB). He holds a B.S. in Electrical and Industrial Engineering from the University of Chile, an M.A. in Political Economy from Boston University and a PhD in Economics from Boston University. His main fields of interest are political economy, development economics and economic history.

Maurizio Zanardi 80x108Maurizio Zanardi – Lancaster University
Maurizio Zanardi is a Reader in Economics at Lancaster University Management School. Before joining the Department of Economics at the Lancaster University Management School, he held positions at the University of Glasgow (UK) and Tilburg University (Netherlands) and at the Université Libre de Bruxelles (Belgium). He is also a member of the Managing Board of the European Trade Study Group (ETSG). His main research interests are in the areas of international trade and political economy.

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