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This dissertation delves into the complex dynamics of U.S. nuclear weapon deployments. Scholarly work on nuclear weapons has predominantly focused on strategic forces. However, many escalation scenarios foresee the use of tactical nuclear weapons as a precursor, which could eventually lead to an all-out nuclear war. These are exactly the weapons that the United States has deployed across the world, and we know little about their strategic causes and consequences. My study addresses this gap in the literature.
The first part of this dissertation investigates the causes of U.S. nuclear weapon deployments. It emphasizes the importance of assurance, which has commonly been neglected or subsumed under non-proliferation. Through a comprehensive conceptualization, I distinguish assurance from other strategies of interstate interaction, explaining how the U.S. uses nuclear weapon deployments to assure allies and maintain its sphere of influence. Utilizing an original dataset, I find evidence that largely confirms my assurance hypotheses. With regard to alternative explanations, the power projection hypotheses are supported, but the extended deterrence hypotheses are not. These results contribute to the underdeveloped literature on assurance and provide valuable insights into the strategic considerations underlying U.S. nuclear weapon deployments.
The second part, which is co-authored with Julian Wucherpfennig, examines the consequences of U.S. military deployments, both conventional and nuclear. The theory of free-riding in military alliances postulates that member states piggyback on security commitments by guardian states. We argue that free-riding critically implies that foreign military deployments positively affect subjective feelings of security – in other words: that they assure. In contrast, if citizens hold skeptical views of the guardian or do not subscribe to the (extended) deterrence logic, they might experience an increase in threat perception. We investigate how foreign military deployments impact attitudes toward defense policies in host states through an observational data analysis and a survey experiment. While nuclear and conventional troop deployments decrease citizens’ subjective need for defense, they do not necessarily increase their sense of protection, challenging the logic of free-riding.
Taken together, my findings suggest a mismatch between objectives and outcomes. While I find evidence that nuclear weapons are deployed to assure allies, this aim does not appear to be effective at the micro-level.
Across industrialized countries, regional disparities in labor market outcomes and income have increased in recent decades. This paper investigates how one of the largest localized labor demand shocks tied to the beginning of de-industrialization- the decline of the mining industry between 1960 and 2010 - affects labor market outcomes in the long run. The analysis relies on a new panel data set based on digitized census records from Belgium, France, the UK, and Germany that allows to trace labor market adjustments over 60 years for the male and female working-age population separately. For the causal estimation, I use an IV-shift share approach that exploits exogenous variation in the shifts induced by increased seaborne trade of energy substitutes and the share given by geological rock strata to predict mining activity. The male population disproportionately suffered under this (early) de-industrialization shock and the subsequent job loss. For the male population, the employment-population ratio has not yet recovered resulting in persistent local joblessness. In contrast, the female working-age population experienced a strong catch-up in employment and participation. I find that at the aggregate level, a substantial, albeit time-lagged population response paired with a strong increase in female participation rates fully compensate for the loss of male jobs over the decades. As a consequence, the male-female employment gap shrinks over time.
Narrative Persuasion
(2024)
We study how one person may shape the way another person interprets objective information. They do this by proposing a sense-making explanation (or narrative). Using a theory-driven experiment, we investigate the mechanics of such narrative persuasion. Our results reveal several insights. First, narratives are persuasive: We find that they systematically shift beliefs. Second, narrative fit (coherence with the facts) is a key determinant of persuasiveness. Third, this fit-heuristic is anticipated by narrative-senders, who systematically tailor their narratives to the facts. Fourth, the features of a competing narrative predictably influence both narrative construction and adoption.
To accept carbon pricing, citizens desire viable alternatives to fossil-fuel based options. As inflation and higher interest rates have exacerbated access barriers for capital-intensive green substitutes, the political success of carbon pricing will be measured by how well policy design enables consumers to switch.
This chapter presents a microeconomic, behavioral perspective on bounded rationality and beliefs. It begins with an account of how research on belief biases, in particular via probabilistic belief elicitation, has become mainstream in economics only relatively recently and late, even in behavioral economics (aka “psychology and economics”). The chapter then offers a review of the decision-theoretic foundations of modeling and eliciting (subjective) beliefs as probabilities, as well as selected—both classic and recent—evidence on humans’ bounded rationality from related research in psychology and economics. In doing so, it connects the historical debates within decision theory, on the one hand, and within psychology, on the other, concerning the normative status of expected utility and Bayesianism, as well as its methodological implications. A conclusion draws lessons for the practice of belief elicitation and future research.
While psychotherapy has been shown to be effective in treating depression, take-up remains low. In a sample of 1,843 depressed individuals, we document that effectiveness concerns are top-of-mind when respondents consider the value of therapy. We then show that the average respondent underestimates the effectiveness of therapy and that an information treatment correcting this misperception increases participants’ incentivized willingness to pay for therapy. Information affects therapy demand by changing beliefs rather than by shifting attention. Our results suggest that information interventions that target the perceived effectiveness of therapy are a potent tool in combating the ongoing mental health crisis.
This paper studies a key element of discrimination, namely when stereotypes translate into discriminatory actions. Using a hiring experiment, we rule out taste-based discrimination by design and test for the presence of two types of belief-based gender discrimination. We document evidence of explicit discriminators—individuals who are willing to discriminate even when their hiring choices are highly revealing of their gender-biased beliefs. Crucially, we also identify implicit discriminators—individuals who do not discriminate against women when taking a discriminatory action is highly revealing of their biased beliefs, but do discriminate against women when their biased motive is obscured. Our analysis highlights the central role played by features of the choice environment in determining whether and how discrimination will manifest. We conclude by discussing the implications for policy design.
Transnational Constitutionalism is a sociological given and a legal challenge. We observe the emergence of ever more legally-framed transnational arrangements with ever more power and impact. Does this kind of rule ‘deserve recognition’? Is it at all conceivable that the proprium of law can be defended against the rise of its informal competitors? This essay opts for a third way which neither listens to the siren songs on law beyond the state nor to the defences of nation-state constitutionalism as the monopolist of legitimate rule. The alternative submitted suggests that transnational legal ordering of the EU should build upon its re-conceptualisation as a ‘three-dimensional conflicts-law’ with a democracy-enhancing potential. This re-construction operationalises the ‘united in diversity’ motto of the Draft Constitutional Treaty of 2004. It preserves essential accomplishments of Europe’s constitutional democracies. It provides for co-operative problem-solving of transnational regulatory tasks, and it retains supervisory powers over national and transnational arrangements of private governance.
How do households perceive the forecasting performance of the central bank? Using two novel experiments embedded in the Bundesbank's Survey on Consumer Expectations (total $N=9500$), this article shows that the majority of German households underestimate the ECB's inflation forecasting accuracy. In particular, they believe that the ECB is overly optimistic. Communication that challenges these perceptions improves the anchoring of inflation expectations, reduces inflation uncertainty and discourages consumption of durable goods. Treated households also report higher trust in the ECB, perceive the ECB's inflation target as more credible, the ECB's communication as more honest, and the ECB's policy as more beneficial to them. Finally, the causal effect of central bank trust on inflation expectations is quantified using instruments to deal with endogeneity.