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The purpose of this study is to outline the specific details and lessons learned during a cold case collaborative effort, which granted graduate students and a professor from the University of South Florida the opportunity to assist Pasco Sheriff’s Office in the investigation of a cold case homicide.

The collaboration between law enforcement and academics is a new and emerging strategy to investigate cold cases and identify the elusive offenders who committed these crimes. Such collaboration aids law enforcement by obtaining a force multiplier for investigative resources, accessing cutting-edge evidence-based research and cultivating innovative approaches to their work. For academics, such collaboration allows the unique opportunity to engage in translational criminology, which is an important and increasingly encouraged aspect of the field.

In this paper, the authors provide an overview of the process used to study this cold case as part of an experiential academic course, provide evidence-based research findings relevant to cold case investigations and outline the steps for others to replicate the efforts.

The authors describe in detail the process used to “work” the cold case, academic research that the authors found useful in understanding and investigating cold cases, important lessons learned and advice for future academics and practitioners who undertake an incredible collaborative effort such as this.

This paper aims to estimate the effect of agglomeration on the probability of being an informal firm in Cali, Colombia. Informal firms produce legal goods but do not comply with official regulations. This issue is relevant because, similar to other developing countries, the informal sector in Colombia employs more than 50 per cent of the workforce. The results of this study demonstrate that one standard deviation increase in agglomeration reduces by 52 per cent the probability of being informal. Results are consistent with the idea that informal firms benefit less from agglomeration because of legal restrictions that block the relationship with formal firms.

The objective of the present paper is to estimate the effect of agglomeration on the probability that a firm – given a location – chooses to be informal. The authors deal with endogeneity issues by using soil information related to earthquake risk, which reduces the height of buildings and therefore increases the cost of agglomeration. The analysis focuses on Cali, Colombia, where the informal sector employs 60 per cent of the workforce. The registration of economic activities is used as a criterion to identify informal firms, in such a way that the percentage of informal firms is 42 per cent.

The authors find that the effect of agglomeration is strongly negative. The probability of being informal diminishes by 52 per cent when agglomeration increases by one standard deviation. Results in this paper shed light on how formal firms tend to be localized in high-density commercial and industrial areas, while informal firms are localized in low-density and peripheral areas where the land for production is cheaper and where they can avoid the control of authorities.

Theory argues that spatial production externalities and commuting costs are among the main forces that shape the city’s internal structure. Externalities include effects that increase firms’ production, and therefore workers’ income, when the size of the local economy grows. The authors now have strong evidence that firms’ productivity is positively related with the volume of nearby employment. Most of the empirical findings concern firms in the formal sector and, accordingly, the literature says little about the effect of agglomeration on informal firms’ location. However, this effect is crucial for developing countries where informal work is the main option for less-educated workers facing unemployment.

This paper aims to evaluate whether entrepreneurs with an innovative product/service are more likely to formally register their businesses. Understanding the decision of business registration as a rational choice of the entrepreneurs, where she weighs the costs versus the benefits of such formalization, the study expands the literature on informal entrepreneurship by looking at the benefit-side rather than the typically evaluated cost-side of an individual cost-benefit evaluation.

The authors relied on the Global Entrepreneurship Monitor (GEM) adult population survey to evaluate the hypothesis. Specifically, the authors used the GEM data of 2016 for Colombia, covering 2,069 observations (a representative sample at the country level), evaluating the relationship between innovativeness and business registration for the early stage of the entrepreneurial process. Given the nature of our dependent variable, the authors estimated a logistic regression model.

Different from what the authors hypothesized, they did not find empirical evidence for a positive correlation between an innovative product or service and business registration. Instead, businesses that compete with many others offering the same product/service have a higher tendency to register at the Chamber of Commerce. Contrarily of what might be suspected, opportunity-based entrepreneurship – as opposed to necessity-based – is not a relevant variable when formalizing a business, providing evidence for our hypothesis that necessity-based entrepreneurship cannot be equalized with informal entrepreneurship. Additionally, the authors show that an entrepreneur with higher socioeconomic status is more likely to register his company.

The results provide first exploratory evidence that the benefit evaluation may play a role in formalizing a start-up, thus calling for future research that not only tackles the influence of registration costs and administrative burden but rather looks at the outcome of a cost-benefit analysis. The data imply several limitations which future research should address: variables measuring the innovativeness of the product/service are rather coarse measures and need to be expanded and detailed in future research. Additionally, the authors acknowledge that a relatively high number of missing values may generate a selection bias in our population sample. Finally, because of situating the research in a developing country, the research results may lack generalizability. Therefore, researchers are encouraged to test the proposed propositions further.

In a country like Colombia with very high levels of informality, it is necessary that the government fully understands the role of innovation in the formalization process of start-ups. The results indicate that a differentiation of support mechanisms to increase the formalization of businesses according to the different stages of their development may be necessary and that aside from costs, benefits of formalization play a role. A higher level of formality is not only related to economic growth but also much better protection of workers, therefore going beyond the reduction of registration costs and the implied administrative burden should be an additional public policy target for decreasing informality. Finally, the correlation of socioeconomic stratum with the decision to register hints at a varying evaluation of formalization, a point that merits attention by government and academia.

The study shifts the focus from the evaluation of solely costs for business registering as a barrier to start-up formalization to the cost-benefit analysis. The authors propose – and show – that such an evaluation is not generalizable for all kinds of business. Specifically, the authors show that a start-up is more likely to register when it competes with a large number of competitors than when it competes with a smaller number of others offering the same. At the same time, the authors also show that the stage at which the start-up company is at influences the decision to formalize.

Este trabajo tiene como objetivo evaluar si los empresarios con un producto/servicio innovador son más propensos a registrar formalmente sus negocios, entendiendo la decisión de registrar el negocio como una elección racional, en la que el emprendedor sopesa los costos frente a los beneficios de dicha formalización. Este estudio amplía la literatura sobre el emprendimiento informal al plantear un análisis enfocado en los beneficios de una formalización del negocio.

Se utiliza la encuesta Global Entrepreneurship Monitor (GEM) Adult Population Survey para evaluar nuestras hipótesis. Específicamente, utilizamos los datos del GEM de 2016 para Colombia, cubriendo 2.069 observaciones (una muestra representativa a nivel de país), evaluando la relación entre una oferta innovadora y el registro de negocios para la etapa temprana del proceso emprendedor. Dada la naturaleza de nuestra variable dependiente, estimamos un modelo de regresión logística.

Contrario a la hipótesis propuesta, no encontramos una correlación estadísticamente significativa positiva entre un producto o servicio innovador y el registro de empresas. En su lugar, las empresas que compiten con muchas otras empresas que ofrecen el mismo producto/servicio tienen una mayor tendencia a registrarse en la Cámara de Comercio. Asimismo, el emprendimiento basado en la oportunidad -en contraposición al basado en la necesidad- no es una variable relevante a la hora de formalizar un negocio, hallazgo en congruencia con a nuestra hipótesis de que el emprendimiento basado en la necesidad no puede equipararse al emprendimiento informal. Además, mostramos que un emprendedor con un estatus socioeconómico más alto tiene una mayor probabilidad de registrar su empresa.

Los resultados obtenidos proporcionan la primera evidencia exploratoria de que la evaluación de los beneficios puede desempeñar un rol en la formalización de una empresa de nueva creación, por lo que se requiere mayor investigación que no sólo aborde la influencia de los costos de registro y administrativos asociados, sino que examine el resultado de un análisis costo-beneficio. Los datos utilizados tienen varias limitaciones que una investigación posterior debería abordar: las variables que miden el carácter innovador del producto/servicio son medidas muy básicas y deben ampliarse y detallarse en futuros estudios. Además, el número relativamente alto de valores perdidos puede generar un sesgo de selección en nuestra muestra empleada. Por último, al situar nuestra investigación en el contexto de un país de desarrollo, los resultados pueden ser poco generalizables. Por lo tanto, futuras investigaciones deberían abordar en detalle los hallazgos presentados.

En un país como Colombia, con niveles muy altos de informalidad, es necesario que el gobierno comprenda plenamente el papel de la innovación en el proceso de formalización de las empresas emergentes. Nuestros resultados indican que una diferenciación de los mecanismos de apoyo para aumentar la formalización de las empresas según las diferentes etapas de su desarrollo puede ser necesario. A su vez, además de los costos, los beneficios de la formalización juegan un papel importante. Un mayor nivel de formalidad no sólo está relacionado con el crecimiento económico sino también con una mejor protección de los trabajadores, por lo que ir más allá de la reducción de los costos de registro y de la carga administrativa implícita debería ser un objetivo adicional de política pública para disminuir la informalidad. Por último, la correlación del estrato socioeconómico con la decisión de registrarse sugiere que la evaluación de formalizarse varía dependiendo del estatus socioeconómico, un punto que merece la atención del gobierno y la academia.

Nuestro estudio desplaza la atención exclusiva en los costos de registro de una empresa, y sus barreras asociadas, hacia el análisis costo-beneficio como parte de la evaluación y decisión de formalización de las nuevas empresas. Proponemos ‐y demostramos‐ que dicha evaluación no es generalizable para todo tipo de empresas. En concreto, demostramos que es más probable que una empresa emergente se registre cuando compite con un gran número de competidores que cuando compite con un número menor de otras que ofrecen lo mismo. A su vez, también mostramos que la etapa de desarrollo en la cual se encuentra la empresa emergente influye en la decisión de formalizarse.

An electroencephalography (EEG) examination may cause psychological stress in children with autism that can interfere with the examination results. The objective information on the presence or absence of psycho-emotional stress in patients can help interpret electroencephalograms. This paper aimed to demonstrate the potential of noninvasive objective diagnostics of emotional stress in autistic children undergoing an EEG examination based on analysis of saliva.

This study involved 19 children with autism spectrum disorder (ASD) (ICD-10 F84.0); the mean age was seven years. During EEG examination of the children, behavioral parameters were assessed. The activity of cytochrome P450 reductase (CYPOR) in saliva was measured before and after the EEG procedure using lucigenin-enhanced nicotinamide adenine dinucleotide phosphate-stimulated chemiluminescence assay.

Significant differences in CYPOR activity were found between the children who were distressed during an EEG examination and the children without behavioral disturbances (Mann–Whitney test, p = 0.002). Thus, the EEG examination resulted in an increase in CYPOR activity in saliva cells, which may prove the stressful effect of this procedure on autistic children.

The chemiluminescent indices reflecting the activity of microsomal CYPOR in cells presenting in saliva correlate with the absence or presence of psychological stress in children; this phenomenon can be explained by an increased metabolism of the stress hormone, cortisol, by the cytochrome P450 microsomal system. Furthermore, the proposed method is completely safe, noninvasive, rapid (recording time is 20 min), inexpensive and promising for an objective assessment of psycho-emotional stress in autistic children undergoing medical examinations.

The paper aims to contribute to the Circular Economy debate from the Entrepreneurship Education perspective. Despite scholars' growing interest in both these research streams, scarce consideration is given to the comprehension of their mutual implications and meaning.

The paper is based on a cross-case analysis. It compares 16 higher education programmes launched by Universities in Europe aimed to create competences and skills for Circular Economy in students with different profiles. The analysis provides a critical view of the emerging trends for the entrepreneurship education skills and competencies needed for the emerging circular entrepreneurship paradigm.

The paper discusses the main trends of Entrepreneurship Education focused on Circular Economy debate at the European level: rationale and learning objectives (why); contents (what), target students and stakeholders (who) and the learning processes (how). Four thematic areas are identified as common patterns: circular economy business model, green supply chain management, technology entrepreneurship and innovation and public policies and institutional frameworks.

The paper sheds new light on a still under-researched area, suggesting several implications and avenues for future research in Circular Economy and Entrepreneurship Education. Limitations regard the need to analyse education programmes from a larger geographical area, to take into consideration interesting experiences in the rest of the world and to also collect quantitative data.

Practical implications arise for the development of learning initiatives for the Circular Economy: learning objectives and new thematic areas focused on circular, sustainable and innovative rethinking of the process for creating value in the incumbent companies; exploring meaning and benefits of collaborative approaches and participation in the circular economy innovation ecosystem and developing advanced models for soft-skills development in terms of leadership, motivational and creative skills.

The debate on CE can also be rooted in the paradigm of entrepreneurship as a core process to advance knowledge on valuable and sustainable innovation.