Dynamic interdiction networks with applications in illicit supply chains

We study the interdiction of illegal product distribution in a network with multiple sources (origins) and sinks (destinations). This work contributes to the literature of dynamic maximum flow interdiction problems by addressing multiple commodities in a network of relationships. The related distribution network consists of (1) criminals, who are hierarchically connected, and seeking to maximize the total profit flow from origins to destinations, and (2) enforcement officers aiming to minimize criminals’ long-term success by monitoring and arresting them, using the limited resources at their disposal. Considering several real-world operational details, we first propose a mixed-integer programming model by reformulating a Min–Max bi-level mathematical model. We then propose a new formulation and discuss its efficiency compared with the traditional duality-based reformulation. This new formulation also has a higher compatibility with decomposition solution methods. Utilizing the new formulation, we design a solution method based on the Benders decomposition procedure and apply several accelerating strategies (e.g., Super Valid Inequalities) to solve larger instances for a better representation of reality. Lastly, we create a heuristic method based on real-world evidence, which is usually practiced by law enforcement officers. Our results show that the quality of the heuristic method declines quickly as the network size increases.     

Functional Behavior Assessment of the Unintentional Discharge of Firearms in Law Enforcement

Unintentional discharge (UD) is a term used in law enforcement to distinguish between an unplanned gunshot and a planned gunshot, regardless of context. The purpose of this paper is to (a) discuss the interdisciplinary literature on this topic, (b) merge and summarize the behavioral literature to provide a cohesive account of the phenomenon, (c) analyze injuries in relation to antecedent classes and context, and (d) develop strategies for firearm safety training that might prevent UDs and associated injuries in law enforcement. We provide a contextual behavioral taxonomy through the identification of six distinct antecedent classes in which UD can be categorized: contact with objects, medical symptoms, muscle coactivations, routine tasks, startle stimuli, and unfamiliar tasks.     

Developing a planning culture for more effective strategic planning

The literature of long-range planning is replete with justifications of the need for strategic planning and admonitions concerning its critical importance. However, both the literature of planning and its practice, as manifested in a variety of organizations as diverse as industrial firms, educational systems and law enforcement agencies, are deficient in specifying proven techniques and methodologies for marshalling organizational resources to effectively implement strategic planning.Over a period of years, the authors have consulted with a variety of business organizations and public agencies in the development and implementation of long-range planning processes. From this work has come an empirically-tested conclusion that the success of long-range planning in an organization is less sensitive to the parameters of the planning techniques that it is to the overall culture within which the planning is accomplished. Since most of the non-pontifical literature of planning focuses on planning techniques and specifications for planning processes, these conclusions suggest a critical void in planning methodology.     

Knowledge Representation and Reasoning in a Real-Time Operational Control System: The Shipboard Piloting Expert System (SPES)*

This paper describes a knowledge representation approach and reasoning implementation in a real-time knowledge-based control system (KBCS) for navigating ships in restricted waters. This shipboard piloting expert system (SPES) is being developed as an intelligent node in Sperry Marine's ExxBridge integrated ship's bridge system (IBS) for Exxon Shipping Company tankers. The SPES is intended to provide decision support to ships' navigation officers while piloting large vessels in restricted waters, and to reduce the information overload under which they labor, by incorporating local, transit-specific, and shiphandling knowledge, and by providing requisite decision support in a timely fashion. As such, the system provides decision support to (1) senior ships' pilots training junior pilots; (2) ships' masters training junior deck officers in the essentials of good piloting and shiphandling; and (3) watchstanding deck officers utilizing the system's on-line reminder and assist capabilities, or off-line simulation and contingency planning functionality.     

Law Enforcement and Firm Financing: Theory and Evidence

This paper investigates the economic effects on firms' policies of differences in law enforcement. We find that in judicial districts where trials are longer, bank financing is more costly and firms are smaller. However, we do not find any significant relation between law enforcement and firms' leverage ratio. We rationalize our results within a two‐ region dynamic general equilibrium model with asymmetric information and collateralized credit contracts. We find that a stronger enforcement of creditors' rights not only improves credit conditions (partial equilibrium effect), but also fosters individual capital accumulation (general equilibrium effect). In line with this theoretical prediction, we find a positive relation between individual savings and quality of legal enforcement. (JEL: E20, K40, G32)     

The behaviour of police officers in conflict situations: how burnout and reduced dominance contribute to better outcomes

Dominance plays an important part in police-civilian interactions. However, burnout is associated with a reduction in dominance, and this might, paradoxically, lead to more effective outcomes in conflict situations. There is a lack of knowledge about the effects of burnout in professional practice, and this multi-method study was conducted to better understand these dynamics. It is unique in that it combined self-reported burnout with observed behaviour in interactions with civilians. In this study, the relationships between the imbalance between demands and rewards, occupational burnout and police officers’ behaviour in conflict situations (in terms of dominance and effectiveness) were examined. A questionnaire was used to assess job demands, rewards and burnout among 358 Dutch police officers. In addition, police officers’ interactions with civilians were observed over 122 days. The results of structural equation modelling analyses showed that the imbalance between job demands and rewards was predictive of burnout (emotional exhaustion and depersonalization). Burnout, in its turn, predicted a decrease in dominant behaviour in conflict situations and, consequently, more effective conflict outcomes. These findings show that reduced dominance associated with burnout could in fact have positive consequences for professional behaviour in conflict situations. The benefits of reduced dominance in these situations should be taken into account in the training of professionals.     

Korreferat zum Beitrag: Hanno Merkt,Die Rolle des Bilanzrechts in der aktuellen Corporate Governance-Diskussion

Objective of my discussion is to assess the findings of Hanno Merkt and to provide some suggestions regarding several of the discussed issues. The coactions of company law and capital market regulation as well as codices pertaining to accounting and corporate governance as mentioned by Hanno Merkt call for a differentiated approach. In particular, a distinction regarding capital market orientation of companies as well as regarding differing purposes of individual and consolidated financial statements has to be made. Also, I encourage the research community to discuss the company’s management and monitoring philosophy (“Unternehmensinteresse”) and its enforcement in more detail (again). In my opinion, financial reporting serves the purpose of accountability and therefore is—in this sense—only a part of corporate governance in the area of capital markets.     

The Political Economy of Moral Conflict: An Empirical Study of Learning and Law Enforcement Under Prohibition

The U.S. Prohibition experience shows a remarkable policy reversal. In only 14 years, a drastic shift in public opinion required two constitutional amendments. I develop and estimate a model of endogenous law enforcement, determined by beliefs about the Prohibition‐crime nexus and alcohol‐related moral views. In turn, the policy outcomes shape subsequent learning about Prohibition enforcement costs. I estimate the model through maximum likelihood on Prohibition Era city‐level data on police enforcement, crime, and alcohol‐related legislation. The model can account for the variation in public opinion changes, and the heterogeneous responses of law enforcement and violence across cities. Results show that a 15% increase in the homicide rate can be attributed to Prohibition enforcement. The subsequent learning‐driven adjustment of local law enforcement allowed for the alcohol market to rebound to 60% of its pre‐Prohibition size. I conclude with counterfactual exercises exploring the welfare implications of policy learning, prior beliefs, preference polarization, and alternative political environments. Results illustrate the importance of incorporating the endogenous nature of law enforcement into our understanding of policy failure and policy success.     

The ASARCO-EPA settlement agreement: Understanding the value of a corporate-wide EMS for regulators and strategists alike

State and federal regulatory officials are probing whether environment management system actually enhance industry compliance with environmental law. Already convinced of that fact, many corporate strategies have moved on to the work of integrating auditing, training, policies, procedures and other compliance related elements within an overarching environmental business strategy. A settlement agreement entered into between ASARCO Incorporated, a leading copper producer, and the U.S. Environmental Protection Agency illustrates ane firm's approach to that challenge using the ISO 14001 management system. This agreement, which includes the first corporate-wide implementation of ISO 14001-based management systems by EPA, shows that some within the enforcement community have already been persuaded that a properly designed environmental management system can improve an organization's compliance with environment requirements.     

Training and organizational commitment: exploring the moderating role of goal orientation in the Lebanese context

In this study, we investigated the impact of organizational training on organizational commitment and whether goal orientation moderates the relationship between training and commitment. The sample consisted of 124 employees from different industries in the country of Lebanon. Multiple regression and hierarchical moderated regression were used to test hypotheses. The results of the analysis showed that training has a significant effect on organizational commitment. Moderation analysis showed that the relationship between training and affective commitment was stronger for individuals who had higher levels of learning goal orientation. Performance goal orientation failed to moderate the relationship between training and affective commitment. Ultimately, this suggests that advanced training offered to individuals with performance goal orientations may not necessarily increase their commitment to their employer, in contrast to individuals with learning goal orientations. Theoretical and management implications in the context of Lebanon are proposed.     

Naturalistic Experimental Analysis of Driver Compliance With Posted Speed Limits

The current study assesses the effects of three interventions commonly used by law enforcement officials to increase driver compliance with posted speed limits and thereby reduce speeding. In two multiple-treatment single-case research designs, motorist speeds on two rural roads in a midwestern state were observed and measured during baseline (no intervention) and during exposure to three interventions: a stationary speed trailer, an unmanned police vehicle, and traditional police enforcement. Interventions were counterbalanced across locations and data aggregated according to intervention type. Results suggests that although two of the three commonly adopted methods had no consistent impact on driver speeds, the unmanned police vehicle intervention yielded increases in compliance compared to baseline for both sites. Implications for small-scale traffic research are discussed.     

Disaffected Loyalties in a Changing Contractual Environment

In this paper we examine the effects of the changing employee-employer relationship on loyalty – a construct we developed along Hirschman’s model. The impact on perceptions of loyalty during a downsizing is assessed using a design that manipulates HRM policies toward the use of temporary employees, retraining, employee voice, seniority and community coordination. We introduce ideological orientation as a variable that will have direct and indirect affects. Both MBA students and managers (N = 269) participated in the study. All HRM policies and ideological orientations have direct affects; in addition some indirect effects for ideological orientation emerged. This revised version was published online in July 2006 with corrections to the Cover Date.     

Distinguishing traumatic, vicarious and routine operational stressor exposure and attendant adverse consequences in a sample of police officers

Problems in studying occupational stress within the police service are identified and the paucity of work on operational duties as potential stressors are discussed. The present study reports the results of a factor analysis of operational stressors (N = 601 serving British police officers) that revealed three factors: exposure to death and disaster; violence and injury; sexual crime. These were demonstrated to be reliable scales and were included in logistic regression models together with a range of demographic and psychological variables. Models were applied to men and women separately, which showed there to be different predictors of the likelihood of suffering distress (measured by the General Health Questionnaire, GHQ) in terms of the officer's gender and operational role. Overall the model for women officers was better at predicting psychological distress than that for men. These findings are related to aspects of the police occupational culture. Further discussion is offered that conceptualizes police operational stressors as traumatic, routine and vicarious. Finally, some implications are drawn for the provision of stress intervention in the light of this differentiation.     

The perceptions of human resource development professionals in Taiwan regarding their working relationships with subject matter experts (SMEs) during the training design process

While the literature supports the importance of establishing a relationship between designers and subject matter experts (SMEs) in the training design process, this approach is not followed in all global practices. The purpose of this study was to identify the perceptions of human resource development professionals in Taiwan regarding their working relationships with SMEs. The respondents of the study were HRD professionals who worked in high-tech companies located in a science park in Taiwan. The study found that a significant relationship exists between the ability to work with SMEs and current ability in the training design process among HRD professionals who had worked with SMEs. This study provides implications for the professional development of HRD practitioners and HRD practice in Taiwan companies. Cross-cultural issues are discussed to explain inconsistencies between the results and US-based perspectives on the training design process.     

Burnout, job stress and violent behaviour among Dutch police officers

Much has been published on burnout in the human services. However, despite the extensive literature on job stress in policing, burnout in police officers has rarely been studied. The present study examined stressors in police work, focusing specifically on the lack of reciprocity that officers experience in relations with civilians, colleagues and the police service. It also investigated the relationship between burnout and the attitudes of officers towards violence, as well as to their own use of violence. Dutch police officers (N = 358) completed a self-report questionnaire. The results showed that: (1) organizational stressors were more prevalent than task-related stressors; (2) compared to other service jobs, police officers report a particular profile on the three scales of the Maslach Burnout Inventory (MBI)?a relatively low level of emotional exhaustion,an average level of depersonalization, and a high level of personal accomplishment; (3) burnout is associated with a lack of reciprocity between investments and outcomes in the relations that officers have with citizens, colleagues and their organization; and (4) burnout is positively related to attitudes towards use of violence and the use of violence during the officers' duty.     

A Further Evaluation of Response Cards: Teaching Direct Care Staff Basic Behavioral Principles

Numerous studies have demonstrated the efficacy of response cards for teaching students in educational settings; however, the effectiveness of response cards has yet to be examined in organizational settings where such strategies may be very useful (i.e., in staff training). The purpose of this study was to evaluate the utility of response cards during in-service training to teach basic behavioral principles to direct care staff working in a human service setting. Results indicated that individuals who received the response card training participated more during training and were able to retain more information over time relative to those who received a standard in-service training.     

Collaboration outcomes in a public sector: impact of governance,leadership, interdependence and relational capital

Collaboration between public agencies is critical to address social issues effectively. The main objective of this research was to identify the factors that lead to successful achievement of desired collaboration outcomes that could eventually lead to societal outcomes. The factors identified were: transformational leadership, governance, interdependence, and relational capital. An integrated framework was developed based on collaboration governance framework (CGF) of Ansell and Gash (J Public Adm Res Theory 18:543–571, 2008). The CGF framework has integrated the following four broad variables that are responsible for achieving the desired collaboration outcomes: starting conditions, institutional design, leadership, and collaborative process. The study was conducted in Malaysia by sending questionnaires to 500 officers in various ministries who were involved in planning, formulating, and implementing public policies. The main findings of this study are: (1) transformational leadership influences governance, interdependence, relational capital, and collaboration outcomes; (2) governance has impact on relational capital, interdependence, and collaboration outcomes; (3) relational capital and interdependence result in positive collaboration outcomes; (4) dimensions of governance are inter-related; and (5) interdependence and relational capital are strongly correlated. This research adds significantly to the literature on collaborative governance. The implications and limitations of the study are discussed.     

Burnout,job stress and violent behaviour among Dutch police officers

Much has been published on burnout in the human services. However, despite the extensive literature on job stress in policing, burnout in police officers has rarely been studied. The present study examined stressors in police work, focusing specifically on the lack of reciprocity that officers experience in relations with civilians, colleagues and the police service. It also investigated the relationship between burnout and the attitudes of officers towards violence, as well as to their own use of violence. Dutch police officers (N = 358) completed a self-report questionnaire. The results showed that: (1) organizational stressors were more prevalent than task-related stressors; (2) compared to other service jobs, police officers report a particular profile on the three scales of the Maslach Burnout Inventory (MBI)?a relatively low level of emotional exhaustion,an average level of depersonalization, and a high level of personal accomplishment; (3) burnout is associated with a lack of reciprocity between investments and outcomes in the relations that officers have with citizens, colleagues and their organization; and (4) burnout is positively related to attitudes towards use of violence and the use of violence during the officers' duty.     

Dimensions and design criteria for developing training reaction evaluations

Although there is research on training program evaluation, there is little systematic research on the design, development and use of training reaction evaluations. In order to obtain meaningful information from a program evaluation, evaluation professionals must be rigorous in the design and development of all aspects of an evaluation study, including instrumentation. The purposes of the study were to classify the dimensions of information sought using reaction evaluations and to establish design criteria for developing training reaction instruments. There were three major phases of the study: (1) classification of the dimensions and questionnaire design criteria used in reaction evaluations; (2) validation of the classified dimensions and the questionnaire design criteria by subject matter experts; and (3) assessment of a sample of training reaction instruments currently used in training programs in US corporations. The research findings were: eleven dimensions for reaction evaluation were identified and classified by purpose. Five overall design criteria, each consisting of several sub-criteria, were judged important in the design of reactionnaires. These include: introduction and directions; question format; question construction; questionnaire layout; and data analysis. It was concluded that a well-designed training reaction instrument integrates the proper application of design criteria with appropriate reaction dimensions. Most training reaction instruments used by US corporations consisted of questions representing only a few dimensions. The instruments varied in form and length. Few of them properly utilized the established questionnaire design criteria.     

Application of a Risk Analysis Tool to Middle East Respiratory Syndrome Coronavirus (MERS-CoV) Outbreak in Saudi Arabia

The Grunow–Finke assessment tool (GFT) is an accepted scoring system for determining likelihood of an outbreak being unnatural in origin. Considering its high specificity but low sensitivity, a modified Grunow–Finke tool (mGFT) has been developed with improved sensitivity. The mGFT has been validated against some past disease outbreaks, but it has not been applied to ongoing outbreaks. This study is aimed to score the outbreak of Middle East respiratory syndrome coronavirus (MERS-CoV) in Saudi Arabia using both the original GFT and mGFT. The publicly available data on human cases of MERS-CoV infections reported in Saudi Arabia (2012–2018) were sourced from the FluTrackers, World Health Organization, Saudi Ministry of Health, and published literature associated with MERS outbreaks investigations. The risk assessment of MERS-CoV in Saudi Arabia was analyzed using the original GFT and mGFT criteria, algorithms, and thresholds. The scoring points for each criterion were determined by three researchers to minimize the subjectivity. The results showed 40 points of total possible 54 points using the original GFT (likelihood: 74%), and 40 points of a total possible 60 points (likelihood: 67%) using the mGFT, both tools indicating a high likelihood that human MERS-CoV in Saudi Arabia is unnatural in origin. The findings simply flag unusual patterns in this outbreak, but do not prove unnatural etiology. Proof of bioattacks can only be obtained by law enforcement and intelligence agencies. This study demonstrated the value and flexibility of the mGFT in assessing and predicting the risk for an ongoing outbreak with simple criteria.