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Entrepreneurial ventures aspiring to disrupt existing market incumbents often use business-model innovation to increase the attractiveness of their offerings. A value proposition is the central element of a business model, and is critical for this purpose. However, how entrepreneurial ventures modify their value propositions to increase the attractiveness of their comparatively inferior offerings is not well understood. The purpose of this paper is to analyze the value proposition innovation (VPI) of aspiring disruptors.

The authors used a flexible pattern matching approach to ground the inductive findings in extant theory. The authors conducted 21 semi-structured interviews with managers from startups in the global electric vehicle industry.

The authors developed a framework, showing two factors, determinants and tactics, that play a key role in VPI connected by a continuous feedback loop. Directed by the determinants of cognitive antecedents, development drivers and realization capabilities, aspiring disruptors determine the scope, focus and priorities of various configuration and support tactics to enable and secure the success of their value proposition.

The authors contribute to theory by showing how cognitive antecedents, development drivers and capabilities determine VPI tactics to disrupt existing market incumbents, furthering the understanding of configuration tactics. The results have important implications for disruptive innovation theory, and entrepreneurship research and practice, as they offer an explanatory framework to analyze strategies of aspiring disruptors who increase the attractiveness of sustainable technologies, thereby accelerating their diffusion.

The purpose of this paper is to assess the fatigue life of different sizes of HyFlex CM™ endodontic files when submitted to planar or to non-planar curvatures, and to two different rotational speeds, namely 500 rpm or 250 rpm. The influence of superimposing back and forth motion to rotational bending of endodontic files was also assessed.

In all, 64 HyFlex CM™ files of different sizes, namely ref. 0.04/20, 0.06/20, 0.04/35 and 0.06/35, were submitted to rotational bending tests at two different rotational speeds. The planar radius of curvature imposed to the endodontic files was about 4.5 mm, along an angle of 45°, in order to simulate an apical canal that would induce severe loading to the files during clinical treatment. Additionally, 11 Hyflex CM™ files ref. 0.04/20 were submitted to rotational bending tests at 500 rpm inside a mandible first molar manufactured through selective laser melting (SLM), aiming to simulate non-planar curvatures of a real tooth canal.

When considering planar curvature, the endodontic file ref. 0.06/20, tested at 250 rpm, has shown the highest fatigue resistance (4,185 revolutions, 1,004 seconds), while the lowest fatigue resistance was registered for instrument ref. 0.04/35 submitted to 500 rpm (747 revolutions, 89 seconds). Hence, depending on the rotational speed, surface finish and the size of the endodontic files tested (taper and tip’s diameter), significant differences in fatigue resistance were noticed. If non-planar curvatures were considered, the minimum fatigue resistance was equal to 107 seconds, and back and forth motion allowed extending the minimum fatigue lifetime to 140 seconds.

The fatigue resistance of endodontic files is frequently determined through in vitro fatigue tests carried out under single planar curvature or eventually under double planar curvatures. However, non-planar loadings are frequently induced on endodontic instruments when treating root canals with severe multiplanar curvatures. In the research herein presented, a mandible first molar was 3D printed by using the SLM technique in an AISI 316 L stainless steel and more realistic experimental fatigue tests were carried out.

The purpose of this paper is to examine the cognitive and affective dimensions of COO and the owned-by/made-in cue combinations in first-generation immigrant markets.

The cognitive and affective dimensions were manipulated in a scenario-based experiment administered on 261 Mexican Americans in three product categories.

The cognitive and affective dimensions each have a distinct impact. When the two dimensions combine, the effect is stronger within the specialty product category, followed by the shopping product category, and, to a lesser extent, in the convenience product category.

The cognitive dimension was represented by the country’s degree of political, economic and technological development, whereas the affective dimension was traced by examining immigrants who identify with the emotional and symbolic meanings associated with countries involved in the country of origin (COO) message.

Managers should pursue emerging COO research whose concepts and designs are congruent with today’s global consumer culture. The authors find support for the stand-alone effects of made-in and owned-by COO cues, as well as the effects of the cognitive and affective dimensions of COO. When COO messages combine both made-in and owned-by cues, the cognitive and affective dimensions may work synergistically, depending on the product category.

This study adds to the nascent literature that recognizes the multiplicity of consumer identities, and bridges the gulf between the conventional COO research and the increasingly multicultural nature of the marketplace.

This chapter examines the economics of alternative healing in Brazil.

Two narratives are selected from extensive observations and interviews over a period of years. The presentation chronicles the accounts of people experiencing physical symptoms who sought further advice from friends and relatives after visits to conventional medical providers failed to cure them.

In response to a recommendation from one of those consulted, one person went to a spirit “received” by a Kardecist/Spiritist healer-medium while the other obtained treatment from an otherworldly being at an Umbanda center. The respective “therapeutic” procedures are described and analyzed in terms of the beliefs and the worldviews of each of the traditions. If satisfied with the outcome, the patient fulfills an implicit bargain with the otherworldly being(s) and its religious group by adopting their beliefs and practices. This conversion is “payment” for the healing services rendered.

Since some treatments are successful and others are not, the implications of this exchange is that many Brazilians may change their religions several times during their lifespan. As a result of this behavior individuals circulate among the several religious groups that are always in competition with each other.

The analysis provides a distinctive insight into, and original way to understand, alternative health care in Brazil.

We propose a modified discretization for the current continuity equation in the hydromodel for semiconductors. It combines ease of implementation within existing codes and robustness, even for extremely short devices. Some computational results for one and two dimensional structures are given.

In previous efforts I have dated the birth of (modern) Social Catholicism (alias: Roman‐Catholic Social Economycs) with the publication of the closely associated works of Charles de Coux (1832) and Alban de Villeneuve‐Bargemont (1834/37). If indeed (and without going all the way back to Jesus of Nazareth, via Thomas Aquinas, Jerome and Ambrose et al.) that be the case, and the implication of the present assignment be correct, then we should have to date the “birth of solidarism” in the Social‐Catholic vein identically. Undaunted by Gide's virtual declaration that “they were all solidarists then”, this is what we set out to show, viz. that our Solidarism did have its birth therewith.

We present a model that allows us to compare the effects that frictions involved in immigration and international outsourcing have on the skilled–unskilled wage inequality. We show that, for any given level of contractual friction in the production of intermediate goods, the wedge between the wages of the skilled and unskilled workers widens as the frictions in immigration wear out. The skilled–unskilled wage gap, for any given level of friction in immigration, is sensitive to variations in contractual frictions in intermediates that affect international outsourcing.

We are grateful for the privilege of editing this book and organizing the conference that it celebrates. We thank our universities, departments, and organizations for their generous support, the many people who helped organize the conference, and the reviewers acknowledged below. Most of all, we thank our presenters, participants, and authors for their interest and energy.