Discretionary Behavior and Racial Bias in Issuing Traffic Tickets: Theory and Evidence

Recently, police departments, legislators, media, and the public at large in the U.S. have increasingly been concerned about racial disparities in officers' issuing traffic tickets. Ascertaining the extent to which an observed disparity reflects racial bias is the crucial issue. First, we use a theoretical model which borrows features from the recent literature regarding racial bias in vehicle searches. In our model, motorists, picking the speed to travel at, take into account the probability of getting ticketed and the speed that the officer will cite, while officers maximize a benefit function generically increasing in the speed of ticketed drivers; this benefit function, however, is general enough to allow officers to give certain drivers a break by citing them at a lower speed than they were traveling. Empirically, we exploit the existence of a massive accumulation of speeding tickets at 10 m.p.h. over the speed limit to elicit officers' discretionary behavior and leniency. Surprisingly,about 30% of all ticketed drivers were cited for driving exactly at this particular speed. Using our novel measure of officers' leniency, we find that especially white and male officers are heavily engaged in discretionary behavior. We also find officers' discretion is racially biased; minority officers are less lenient to minority drivers. This is interesting in comparison with Antonovics and Knight (forthcoming) who, using the same data set, found evidence on own-race preferences in vehicle searches.Discretionary behavior, strict behavior, leniency, racial bias, drivers' speeding decision, officers' ticketing and citation decision.

Industry Trade-Balance and Domestic Merger Policy: Some Empirical Evidence from the U.S.

The literature on antitrust in an open-economy setting is inconclusive with respect to the role played by trade-balance on the tenor of domestic merger policy. Using a panel data set composed of US merger reviews by industrial sector over the 1997-2001 period, I empirically test the impact of sectoral trade balance on the level of antitrust scrutiny. The results suggest that larger trade balances lead to more vigorous antitrust scrutiny; thus, ‘strategic’ merger policy does not appear evident, and consumer-surplus appears to guide US merger policy even under the lure of international competitive gains. ZUSAMMENFASSUNG - (Empirische Evidenz über den Zusammenhang von Leistungsbilanz und Fusionspolitik in den U.S.A.) Die "anti-trust"-Literatur bezogen auf eine offene Volkswirtschaft sagt wenig dazu aus, welche Rolle die Leistungsbilanz für die Fusionspolitik eines Landes spielt. In diesem Papier wird anhand von Paneldaten, in denen die Berichte der Fusionskontrolle in unterschiedlichen Industrien der U.S.A. über einen Zeitraum von 1997-2001 zusammengestellt sind, empirisch getestet, welchen Effekt die Leistungsbilanzen - nach Industriezweigen unterteilt - auf das Niveau der "antitrust"- Kontrolle haben. Die Ergebnisse der Tests deuten an, dass mit größerem Leistungsbilanzgewicht auch eine strengere "anti-trust"-Kontrolle einhergeht. Folglich ist eine "strategische" Fusionspolitik der U.S.A. nicht zu erkennen. Stattdessen scheint die US-amerikanische Fusionspolitik stark vom Verbrauchernutzen geleitet zu sein, trotz der Verheißung internationaler Wettbewerbsvorteile.Merger Policy, International Effects, Open Economy

Export Orientation and Domestic Merger Policy: Theory and Some Empirical Evidence

The recent 'open-economy industrial organization' literature generally finds export-orientation to enhance the weight of post-merger international competitive gains; thereby, favoring lenient domestic merger policy. We observe, however, that mergers seldom generate the ‘significant synergies’ that are supportive of international competitive gains. Further, we explore a joint-economies of production effect which suggests that domestic mergers tend to generate international competitive losses (not gains). Accordingly, we contend that export-orientation favors strict (not lenient) domestic merger policy. In order to support this contention, we develop a model illustrative of how non-synergistic domestic mergers in the presence of international sales might reduce national welfare and incur stringent merger-reviews. Further, using a panel data set composed of U.S. merger policy by manufacturing sector over the 1990-2001 period, we empirically support export-orientation leading to strict merger policy. ZUSAMMENFASSUNG - (Exportorientierung und nationale Fusionspolitik: Theorie und empirische Belege) In der neueren Literatur zur Industrieökonomie in offenen Volkswirtschaften wird allgemein herausgestellt, dass die Zunahme internationaler Wettbewerbs-vorteile durch eine Fusion umso stärker ins Gewicht fällt, je höher die Exportorientierung der Volkswirtschaft ist. Mithin wird eine nachsichtige nationale Fusionskontrolle befürwortet. Im Gegensatz dazu stellen wir fest, dass Unternehmenszusammenschlüsse oft nicht die beabsichtigten signifi-kanten Synergieeffekte haben, die die internationale Wettbewerbsfähigkeit des Unternehmens tatsächlich stärken würden. Stattdessen führen Fusionen eher zu internationalen Wettbewerbsnachteilen. Eine Ursache dafür finden wir im "joint economies of production - Effekt", den wir hier näher untersuchen. Entsprechend kommen wir zu der Auffassung, dass die Exportorientierung einer Volkswirtschaft statt für eine nachsichtige eher für eine strenge Fusions-kontrolle spricht. Das von uns entwickelte Modell veranschaulicht, wie Fusionen von Unter-nehmen, bei denen der Synergieeffekt ausbleibt, in einer offenen Volkswirt-schaft die Wohlfahrt des Landes reduzieren, und lässt erkennen, dass diese Auswirkungen strengere Fusionsprüfungen nahe legen. Auch empirisch belegen wir unsere These über den Zusammenhang von Exportorientierung und strengerer Fusionspolitik anhand von Paneldaten der Jahre 1990-2001, in denen die US-amerikanischen Fusionsentscheidungen nach den Sektoren des produzierenden Gewerbes geordnet zusammengefasst sind.open-economy, merger-policy, export-orientation, antitrust

Implications and Ramifications of a Sample-Size Approach to Intuition

[...from the chapter] In the present article, we delineate a different approach, which is by no means inconsistent, but largely overlaps with the aforementioned definitions. However, our approach is simpler and refrains from a number of rather strong assumptions to which other conceptions subscribe. Using a simple and straightforward criterion, we define intuition in terms of the size of the sample used in reaching a decision: Judgments and decisions are intuitive to the extent that they rest on small samples.

Comparing knowledge sources for nominal anaphora resolution

We compare two ways of obtaining lexical knowledge for antecedent selection in other-anaphora and definite noun phrase coreference. Specifically, we compare an algorithm that relies on links encoded in the manually created lexical hierarchy WordNet and an algorithm that mines corpora by means of shallow lexico-semantic patterns. As corpora we use the British National Corpus (BNC), as well as the Web, which has not been previously used for this task. Our results show that (a) the knowledge encoded in WordNet is often insufficient, especially for anaphor-antecedent relations that exploit subjective or context-dependent knowledge; (b) for other-anaphora, the Web-based method outperforms the WordNet-based method; (c) for definite NP coreference, the Web-based method yields results comparable to those obtained using WordNet over the whole dataset and outperforms the WordNet-based method on subsets of the dataset; (d) in both case studies, the BNC-based method is worse than the other methods because of data sparseness. Thus, in our studies, the Web-based method alleviated the lexical knowledge gap often encountered in anaphora resolution, and handled examples with context-dependent relations between anaphor and antecedent. Because it is inexpensive and needs no hand-modelling of lexical knowledge, it is a promising knowledge source to integrate in anaphora resolution systems

How calibration committees can mitigate performance evaluation bias: An analysis of implicit incentives

While prior research on performance evaluation bias has mainly focused on the determinants and consequences of rating errors, we investigate how a firm can provide implicit incentives to supervisors to mitigate these errors via its calibration committee. We empirically examine the extent to which a calibration committee incorporates supervisors' evaluation behavior with respect to their subordinates in the performance evaluation outcomes, i.e., performance ratings and promotion decisions, for these supervisors. In our study, we distinguish between lack of skills and opportunism as two important facets of evaluation behavior, which we expect the calibration committee to address differently. Using panel data of a professional service firm, we show that supervisors' opportunistic behavior to strategically inflate subordinates' performance ratings is disciplined through a decrease in the supervisors' own performance rating, while the supervisors' skills to provide less compressed and thus more informative performance ratings is rewarded through a higher likelihood of promotion.Series: Department of Strategy and Innovation Working Paper Serie

From the Inner to Outer Milky Way: A Photometric Sample of 2.6 Million Red Clump Stars

Large pristine samples of red clump stars are highly sought after given that they are standard candles and give precise distances even at large distances. However, it is difficult to cleanly select red clumps stars because they can have the same T$_{\mathrm{eff}}$ and log $g$ as red giant branch stars. Recently, it was shown that the asteroseismic parameters, $\rm{\Delta}$P and $\rm{\Delta\nu}$, which are used to accurately select red clump stars, can be derived from spectra using the change in the surface carbon to nitrogen ratio ([C/N]) caused by mixing during the red giant branch. This change in [C/N] can also impact the spectral energy distribution. In this study, we predict the $\rm{\Delta}$P, $\rm{\Delta\nu}$, T$_{\mathrm{eff}}$ and log $g$ using 2MASS, AllWISE, \gaia, and Pan-STARRS data in order to select a clean sample of red clump stars. We achieve a contamination rate of $\sim$20\%, equivalent to what is achieved when selecting from T$_{\mathrm{eff}}$ and log $g$ derived from low resolution spectra. Finally, we present two red clump samples. One sample has a contamination rate of $\sim$ 20\% and $\sim$ 405,000 red clump stars. The other has a contamination of $\sim$ 33\% and $\sim$ 2.6 million red clump stars which includes $\sim$ 75,000 stars at distances $>$ 10 kpc. For |b|>30 degrees we find $\sim$ 15,000 stars with contamination rate of $\sim$ 9\%. The scientific potential of this catalog for studying the structure and formation history of the Galaxy is vast given that it includes millions of precise distances to stars in the inner bulge and distant halo where astrometric distances are imprecise.Comment: 18 pages, 13 figures, 2 tables, submitted to MNRA