Strategic Purity and Efficiency in the Motor Carrier Industry: A Multiyear Panel Investigation

Two questions facing motor carrier managers are (1) whether carriers should specialize in providing full truckload (TL) or less‐than‐truckload (LTL) services vis‐à‐vis offering mix of both and (2) whether this decision is contingent on carrier size. Yet, the literature provides little guidance because research to date has offered contradictory theoretical predictions and inconsistent empirical findings. Drawing on the theory of strategic purity and information processing theory, we explain why service specialization is likely to increase carriers' technical efficiency and why size will have a more pronounced effect on technical efficiency for carriers specializing in LTL services versus TL services. To test our theory, we assemble a panel data set from archival government sources regarding general freight motor carriers' provision of LTL and TL services. We measure carriers' technical efficiency using data envelopment analysis and test our hypotheses by fitting a series of panel data mixed‐effects models. Our results indicate that carriers are most technically efficient when they specialize in one service type. We also find that size positively affects technical efficiency but only for carriers specializing in LTL services; no returns to scale with regard to technical efficiency exist for carriers specializing in TL services.     

Opportunities to reduce road traffic injury: new insights from the study of urban areas

Abstract

Over the past four decades considerable efforts have been taken to mitigate the growing burden of road injury. With increasing urbanisation along with global mobility that demands not only safe but equitable, efficient and clean (reduced carbon footprint) transport, the responses to dealing with the burgeoning road traffic injury in low- and middle-income countries has become increasingly complex. In this paper, we apply unique methods to identify important strategies that could be implemented to reduce road traffic injury in the Asia-Pacific region; a region comprising large middle-income countries (China and India) that are currently in the throes of rapid motorisation. Using a convolutional neural network approach, we clustered countries containing a total of 1632 cities from around the world into groups based on urban characteristics related to road and public transport infrastructure. We then analysed 20 countries (containing 689 cities) from the Asia-Pacific region and assessed the global burden of disease attributed to road traffic injury and these various urban characteristics. This study demonstrates the utility of employing image recognition methods to discover new insights that afford urban and transport planning opportunities to mitigate road traffic injury at a regional and global scale.     

The functions of clothes and clothing (dis)satisfaction: A gender analysis among British students

This study examines the social psychological functions clothes fulfil for young women and men, and the role that these perceived functions play for their (dis)satisfaction with their clothing generally. Sixty female and sixty male British students indicated why an item of clothing they particularly valued was important to them, including perceived functional and mood-related benefits, but also clothes as means for expressing personal and social identity. They also completed a measure of general (dis)satisfaction with one's clothing (Francis, 1990), and described their current financial circumstances.Results of diverse multivariate statistical tests support all three sets of hypotheses: (1) By comparison, men take a more self-oriented approach to clothes, stressing their use as expressive symbols of personality and their functional benefits, whilst women also have other-oriented concerns, choosing to use clothes as symbols of their social and personal interrelatedness with others; (2) although the perceived need for new clothing depends partly on financial constraints, women are more concerned with clothing in the context of peer relations, independently of financial constraints; and (3) the patterns of links between social psychological functions of valued items of clothing and general clothing (dis)satisfaction are gender-specific.Implications of gender differences throughout the clothes consumption cycle — buying motivations, purchase, and use — are discussed with respect to differential aspects of clothing advertising likely to influence women's and men's purchases on the one hand, and with respect to consumer policy tasks in assisting consumers on the other, particularly in the context of addictive buying of women.

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Zusammenfassung Die Funktionen von Kleidung und die (Un)Zufriedenheit mit Kleidung: Geschlechts-spezifische Analyse bei englischen Studenten Die Studie untersucht zum einen die sozialpsychologischen Funktionen von Kleidungsstücken für junge Frauen und MÄnner und zum anderen die Rolle, die diese Funktionen für die (Un)Zufriedenheit mit ihrer Kleidung generell für die Betroffenen haben. Jeweils 60 weibliche und mÄnnliche englische Studenten gaben an, weshalb ein bestimmtes Kleidungsstück für sie besonders wichtig war; dabei spielten funktionale und stimmungsmÄ\ige Aspekte eine Rolle, aber auch der Aspekt, da\ Kleidungstücke persönliche und soziale IdentitÄt ausdrücken. Au\erdem wurde von ihnen ein Ma\ der generellen (Un)Zufriedenheit mit der eigenen Kleidung erhoben. Schlie\lich beschrieben sie ihre derzeitige finanzielle Situation. Die Ergebnisse der verschiedenen multivariaten Analysen bestÄtigen alle drei Gruppen von Hypothesen: (1) Im Vergleich haben MÄnner eine stÄrker selbstorientierte Beziehung zu Kleidungsstücken, die ihren Gebrauch als Ausdruck der eigenen Persönlichkeit und ihre tatsÄchliche Funktion betont, wogegen Frauen auch au\en-orientierte Aspekte verfolgen, indem sie Kleidungsstücke als Symbole ihrer sozialen und persönlichen Beziehung mit anderen auswÄhlen; (2) Auch wenn das Bedürfnis nach neuer Kleidung teilweise von den finanziellen Möglichkeiten abhÄngt, denken Frauen an Kleidung stÄrker im Zusammenhang mit Partner-beziehungen, und zwar unabhÄngig von der finanziellen Situation; (3) Die Beziehungen zwischen den sozialpsychologischen Funktionen besonders geschÄtzter Kleidungsstücke einerseits und der generellen (Un)Zufriedenheit mit der Kleidung andererseits sind geschlechtsspezifisch. Implikationen von Geschlechtsunterschieden wÄhrend des gesamten Konsumzyklus bei Kleidung — Kaufmotive, Kauf und Gebrauch — werden auch in Beziehung mit Einflüssen der Kleidungswerbung und mit verbraucherpolitischen Fragestellungen diskutiert.

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Jason Cox teaches psychology and sociology in London.     

Effectiveness of Indecent Language in Advertising on Young Adult Consumer Attitudes and Purchase Intent

This study applies both the Dual Mediation Hypothesis and Schema Congruity Theory to examine the effectiveness of mild controversial advertising executions on young adult consumer cognitions, affect, and behavior. Findings from this study suggest that advertisements featuring mild indecent language result in more positive advertisement attitudes, brand attitudes, and purchase intentions than when decent language is used. Young adult consumers also report more positive advertisement and brand attitudes, and a greater likelihood of purchase when they perceive the advertisement to be congruent with their existing schema, regardless of whether the execution is mildly controversial or noncontroversial in nature. The findings of this study are important to advertisers in the development of effective creative execution techniques.     

Why Did (Almost) No One See the Inflation Coming?

To understand the possible trajectory of inflation in 2022 and beyond, it is helpful to understand why the United States and Europe had so much inflation in 2021.

     

Reconciling Alternative Theories for the Safety of Owner–Operators

Motor carrier safety is an important concern of shippers, carriers, policy makers, consignees, insurance providers, and the motoring public. One aspect of carrier safety that has garnered substantial attention is whether carriers making greater use of owner–operators are more or less safe vis‐à‐vis carriers making greater use of employee drivers. Currently, conflicting theoretical predictions exist regarding the direction of this relationship. In this article, we offer a reconciliation of the alternative theoretical predictions by developing a coherent theory that merges sociological rational choice theory and theory regarding motor carrier safety. We subject our theory to empirical testing by fitting a series of seemingly unrelated regression models to a vector of safety measures tracked as part of the Federal Motor Carrier Safety Administration's Compliance, Safety, and Accountability program. Our results are consistent with our proposed theory of owner—operator safety and provide meaningful theoretical and managerial implications and directions for future research.     

A Model of Bargaining over Hazardous Waste Cleanup

We put forward a formal model of a bargaining problem in which two parties suspected of contaminating the environment are responsible for clean-up costs. If the parties do not negotiate an agreement on a cost allocation, one will be imposed by the government. This process is commonly used in environmental cleanups performed under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA or Superfund). Passed by the US Congress in 1980 and administered by the Environmental Protection Agency (EPA), CERCLA provides the U.S. government with authority to manage releases (or threatened releases) of hazardous substances that may endanger public health or the environment. We conclude that potentially responsible parties will be induced to settle only in the face of specific allocations of clean-up and explicit threats. For example, at the Middlefield–Ellis–Whisman Superfund site in Mountain View, California, the responsibilities of the different parties for soil and groundwater contamination are understood by all, yet our negotiation model predicts that without the threat that additional costs will be imposed, agreement on the allocation of clean up costs will never be reached.     

The Climate Policy of the European Union

There is now almost universal agreement that climate change, with potentially disastrous consequences, is happening and that it is contributed to by human activities. This Forum is dedicated to the discussion of various aspects of the European Union's climate policy, e.g. the EU's future role in the global effort to combat global warming, the efficiency of its climate strategy, the design of a new rule for sharing the corresponding burdens fairly among member states, and the interrelationships between the Union's climate policies, on the one hand, and its energy and transport policies, on the other. * and member of the German Advisory Council on Global Change (WBGU). The author wishes to thank Helen Bicknell (Mainz University of Applied Sciences), Oliver Deke (WBGU) and Jürgen Schmid (ISET, Department of Efficient Energy Conversion at the University of Kassel) for their helpful comments. ** This contribution is based on a Jean Monnet Lecture held at Aarhus University on 19 March 2007. The author would like to thank Harri Kalimo for valuable comments.     

What is the potential growth rate of the U.S. economy,and how might policy affect it?

The answer to the question “What will future potential growth be?” is as important as it is unknowable. This paper attempts to predict future U.S. potential output growth by combining what is unknown (future productivity growth, the performance of the labor market) with what is known (the evolution of the age structure of the population). It does so in two ways. First, this paper uses the historical experience of potential labor productivity growth, labor force participation, and weekly hours to simulate a range of outcomes for future potential growth—finding a 90% confidence interval that ranges from 0.7% annual growth to 3.0% annual growth, centered by construction around the Congressional Budget Office projection of 1.8% annual growth. Second, the paper examines a range of specific economic policies that the Trump Administration might pursue in terms of their impact on economic growth both in the short run and over the next decade—finding that an outer bound of these policies could be plus or minus 0.5 percentage point on the annual growth rate, but that these policies would most likely subtract a small amount from growth.