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The paper aims to test the direct and mediating effects of a set of environmental (family self‐employment background, social networks, legal system support, governmental support, and social norms) and individual (entrepreneurial self‐efficacy and risk propensity) factors on the propensity for self‐employment in the USA and Mexico.

A survey was administrated among students in three universities in the USA and in two universities in Mexico. Factor, reliability, t‐tests, and regression analyses were carried out. Mediation was assessed following Baron and Kenny.

Most direct and mediating effects were higher for the USA than for Mexico. Entrepreneurial self‐efficacy fully mediated several factor relationships in both countries. Results suggest a pattern of a strong formal institutions‐individual nexus in the USA, and a strong informal institutions‐individual nexus as well as a significant impact of the individual in Mexico.

The main weaknesses of this paper are the simple linear relationships used and the student sample. Nonetheless, the efforts carried out to develop this research and the set of factors considered point in the direction of the type of studies needed to further understanding of the phenomenon.

The paper suggests that effectiveness of self‐employment policy may improve by better matching knowledge about mental schemata, perceived resources, and perceived contexts by the target population with the incentive infrastructure supplied.

The value of this paper is that it studies, using an eclectic theoretical framework, a relatively large set of individual and environmental factors impacting the propensity for self‐employment in two different national contexts.

The purpose of this paper is to examine the relative levels of multiple individual and environmental factors that influence self‐employment motivation in China, Mexico, and the USA and the effect of each factor on motivation for self‐employment in each country.

A survey was administered to 987 students at universities in the USA (n=535), Mexico (n=195), and China (n=257). Confirmatory factor analyses were conducted to assure measurement model fit. Hypotheses were tested using ANOVA tests and regression analyses.

Results indicate that: the USA has the individual and environmental factors most favorable to self‐employment; Mexico has the highest level of motivation for self‐employment; independence and risk taking are the best predictors of motivation for self‐employment in all three countries; the predictive capability of independence, risk taking, and social networks appears similar for China and the USA; and the predictive capability of informal institutions, government support, and legal support appears similar for China and Mexico.

In spite of abundant research on factors involving motivation for self‐employment, little research has tested relationships among sizable sets of these factors in different countries. This paper examines the effects of multiple individual and environmental factors on self‐employment motivation in China, Mexico, and the USA.

The purpose of this study is to suggest the joint use of computer-aided design (CAD) and additive manufacturing (AM) technology for the fabrication of custom-made moulds, designed for the manufacture of polymethyl methacrylate (PMMA) implants for cranio-maxillofacial reconstruction to reduce their fabrication time. Even though tailor-made skull prostheses with a high technological level and state-of-the-art materials are available in the market, they are not always accessible to the general population in developing countries.

Computed tomography data were handled to create a three-dimensional (3D) model of the injury of the patient, by reconstructing Digital Imaging and Communications in Medicine (DICOM) images into an Standard Tessellation Language (STL) file that was further used to design the corresponding implant using CAD software. Accordingly, a two-piece core and cavity moulds that replicated the implant geometry was also CAD designed. The 3D-CAD data were sent to an AM machine (fused deposition modelling) and the moulds were fabricated using polycarbonate as thermoplastic material. A reacting mixture to produce PMMA was poured directly into the fabricated moulds, and left to polymerise until cure. Finally, a clear bubble-free case of study PMMA implant was obtained.

The fabrication of CAD-designed moulds with AM, replacing the production of the injury model, resulted in the reduction of the lead-time in the manufacturing of PMMA around 45 per cent. Additionally, the implant showed better fit than the one produced by conventional process. The use of AM moulds for the fabrication of PMMA implants has demonstrated the reduction in lead-time, which potentially can reduce the waiting time for patients.

Currently, the demand of cranio-maxillofacial implants at only the Hospital General de México “Dr Eduardo Liceaga” (HGM) is 4,000 implants per year, and the average waiting time for each patient is between 5 and 10 weeks, including third-party services’ delays and the time needed to obtain the economical resources by the patient. Public hospitals in Mexico lack manufacturing facilities, so patients have to make use of laboratories abroad and most of the population have no access to them. The implementation of this suggested procedure in public hospitals may improve the accuracy of the implant, increase the number of patients attended per year (up to 83 per cent) and the reduction in waiting time can also reduce mortality and infection rates.

The authors of this paper suggest the joint use of CAD and AM technologies to significantly reduce the production time of PMMA implants by producing moulds rather than the injury model, maintaining the general terms and known steps of the process already established for PMMA implants.