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This paper aims to identify the main inflexion points recorded into development of international accounting standards, case of IAS 38.

The paper takes the form of a conceptual discussion and graphical analysis. The main research method consisted of identifying reference moments, known as inflection points, in the evolution of accounting rules issued by the International Accounting Standards Board and formulating a general framework of testing inflection points’ theory in the development of IAS 38.

The paper highlights the reference moments recorded in the evolution of IAS 38 through the creation of inflexion points’ theory in the field of accounting regulations.

According to the authors’ knowledge, this is an original study whose results have implications into accounting regulations field, as in this area, such a theory has not been applied.

An interview with Rita McGrath a pioneer of “discovery-driven planning,” now widely recognized as one of the most effective approaches for strategy development in the face of uncertainty.

Her research and experience interacting with executive teams positions her to offer corporate leaders practical perspectives and advice on how to approach strategically the great opportunities and dangers that lie ahead in this VUCA environment.

Major inflection points that create real change unfold gradually, then suddenly. Because they do take a while to unfold, an astute strategist who was paying attention to the signs could take advantage of the inflection. The future doesn’t happen all at once. It begins to unfold unevenly, and if you can “interview” where it is starting to take place now, you can begin to develop an early point of view about it.

There’s no substitute for watching how customers interact with your product or service and listening to their conversations about their experience.

McGrath’s thesis is when an inflection point does indeed reach a tipping point, it can feel as though it came out of nowhere. Her advice: if you are making a series of small options-style investments that are at the “edges” of your mainstream activities, you are likely to pick up on weak signals that allow you to, in an optimistic scenario, surf along an inflection point so that when the opportunity presents itself, you can move with speed to capture an advantage.

This paper aims to investigate business-to-business sales executives’ navigation of challenges and changes in planning during two separate periods (prevaccine and postvaccine) of time, which were impacted by a disruptive event (the COVID-19 pandemic).

This study uses a two-phase qualitative data collection approach. Thirteen executives, primarily from the Business-to-Business (B2B) manufacturing industry, were interviewed in phase one (2–3 months before the first COVID-19 vaccine). The second period of data collection was collected 4–5 months after vaccines became available.

The prevaccine business environment focused on short-term challenges, while the vaccine created exponential changes to long-term sales practices, suggesting the need to focus on critical inflection points that occur after the initial disruptive event.

This exploratory study is a step toward developing a deeper understanding of managing disruptive events within a business-to-business sales environment by stressing the importance of both the actual disruptive event and the inflection points that follow the event.

New business models are constantly developing and evolving. However, this study suggests the biggest changes could occur after an inflection point from the disruption. Thus, firms need to consider different planning strategies before and after certain inflection points following a disruptive event. First, firms should adapt from their predisruption strategy to focus on short-term challenges during the initial phases of a disruption, likely halting most of the long-term planning. Second, inflection points create the need to move beyond short-term challenges and changes to focus on long-term changes. Third, long-term strategies and planning postinflection point will be different, and likely more complex, than long-term strategies and planning predisruption.

Most studies look at a disruptive event through a single data collection period. This longitudinal study compares prevaccine and postvaccine thought processes to explore the impact of an inflection point.

The emergence of a coronavirus disease 2019 (COVID-19) epidemic has had a tremendous impact on the world, and the characteristics of its evolution need to be better understood.

To explore the changes of cases and control them effectively, this paper analyzes and models the fluctuation and dynamic characteristics of the daily growth rate based on the data of newly confirmed cases around the world. Based on the data, the authors identify the inflection points and analyze the causes of the new daily confirmed cases and deaths worldwide.

The study found that the growth sequence of the number of new confirmed COVID-19 cases per day has a significant cluster of fluctuations. The impact of previous fluctuations in the future is gradually attenuated and shows a relatively gentle long-term downward trend. There are four inflection points in the global time series of new confirmed cases and the number of deaths per day. And these inflection points show the state of an accelerated rise, a slowdown in the rate of decline, a slowdown in the rate of growth and an accelerated decline in turn.

This paper has a certain guiding and innovative significance for the dynamic research of COVID-19 cases in the world.

The case is based on a real supply chain outsourcing management decision at a major manufacturing company. The company has been disguised for confidentiality reasons. The case discusses different types of outsourcing, supply chain management, the benefits and risks of outsourcing, and various pricing models for outsourcing contracts. Students must make a management decision and answer these questions: Is supply chain outsourcing a viable option for DB Toys? What will the return on investment be? What is the best outsourcing model? What is the best pricing model?

Students learn the different types of outsourcing, supply chain management, the benefits and risks of outsourcing, and various pricing models for outsourcing contracts. Students also learn how to calculate the return on investment of supply chain outsourcing. Most important, the case enables students to understand the strategic context of outsourcing, and to decide which outsourcing model and pricing is appropriate.

Some labor supply curves exhibit inflection points at which they bend backward or fall forward; thus, some workers alternate between increasing and decreasing their labor hours as wages increase. No consensus has yet been reached on the underlying motive for such behavioral inconsistencies. This paper aims to develop a unified theory to explain each of these variations in labor supply.

The author employs a simple model of labor supply with additively separable utility over income and leisure. The sub-utility function for income is of the Friedman-Savage type, exhibiting preferences that alternate between increasing and diminishing marginal utility of income.

Labor supply curves slope downward where relative risk aversion is strong, and upward where relative risk aversion is weak or negative. Thus, utility functions with inflection points can form the basis of labor supply curves with inflection points.

Friedman-Savage utility can explain virtually any observed labor supply functions, including convex, backward-bending, forward-falling, and inverted-S curves.

Inflection points on the labor supply curve can create multiple and unstable market equilibria. Labor-market policies, including legislation pertaining to minimum wages and collective bargaining, and policies to enhance education and economic security, may reduce aversion to risk and thereby decrease the prevalence of unstable equilibria.

This paper unites two lines of research – labor supply and Friedman-Savage utility – which have, rather remarkably, been separate to date. In doing so, it provides a new application of the classic Friedman-Savage paradigm, and a new explanation of labor supply curves with negatively-sloped regions.

The purpose of this paper is to determine both analytically and numerically the kink solutions to a new one-dimensional, viscoelastic generalization of Burgers’ equation, which includes a non-linear constitutive law, and the number of kinks as functions of the non-linearity and relaxation parameters.

An analytical procedure and two explicit finite difference methods based on first-order accurate approximations to the first-order derivatives are used to determine the single- and double-kink solutions.

It is shown that only two parameters characterize the solution and that the existence of a shock wave requires that the (semi-positive) relaxation parameter be less than unity and the non-linearity parameter be less than two. It is also shown that negative values of the non-linearity parameter result in kinks with a single inflection point and strain and dissipation rates with a single relative minimum and a single, relative maximum, respectively. For non-linearity parameters between one and two, it is shown that the kink has three inflection points that merge into a single one as this parameter approaches one and that the strain and dissipation rates exhibit relative maxima and minima whose magnitudes decrease and increase as the relaxation and nonlinearity coefficients, respectively, are increased. It is also shown that the viscoelastic generalization of the Burgers equation presented here is related to an ϕ⁸−scalar field.

A new, one-dimensional, viscoelastic generalization of Burgers’ equation, which includes a non-linear constitutive law and relaxation is proposed, and its kink solutions are determined both analytically and numerically. The equation and its solutions are connected with scalar field theories and may be used to both studies the effects of the non-linearity and relaxation and assess the accuracy of numerical methods for first-order, non-linear partial differential equations.

The purpose of this paper is to investigate how to incorporate the exponentiated Weibull (EW) testing‐effort function (TEF) into inflection S‐shaped software reliability growth models (SRGMs) based on non‐homogeneous Poisson process (NHPP). The aim is also to present a more flexible SRGM with imperfect debugging.

This paper reviews the EW TEFs and discusses inflection S‐shaped SRGM with EW testing‐effort to get a better description of the software fault detection phenomenon. The SRGM parameters are estimated by weighted least square estimation (WLSE) and maximum‐likelihood estimation (MLE) methods. Furthermore, the proposed models are also discussed under imperfect debugging environment.

Experimental results from three actual data applications are analyzed and compared with the other existing models. The findings reveal that the proposed SRGM has better performance and prediction capability. Results also confirm that the EW TEF is suitable for incorporating into inflection S‐shaped NHPP growth models.

This paper presents the WLSE results with equal weight. Future research may be carried out for unequal weights.

Software reliability modeling and estimation are a major concern in the software development process, particularly during the software testing phase, as unreliable software can cause a failure in the computer system that can be hazardous. The results obtained in this paper may facilitate the software engineers, scientists, and managers in improving the software testing process.

The proposed SRGM has a flexible structure and may capture features of both exponential and S‐shaped NHPP growth models for failure phenomenon.

Studies of entrepreneurial action often distinguish between different phases such as opportunity identification, evaluation, and exploitation. Yet, the richness of past contributions masks the absence of an integral framework to organize, in a theoretically consistent ensemble, the different kinds of cognitive processes that underpin entrepreneurial action. In this chapter, we draw from research on human action and cognition to offer an integrative model of the cognitive processes that foster entrepreneurial action. By presenting a more specific articulation of when, how, and why different cognitive processes operate, we provide theorists and empiricists with a more complete picture of how entrepreneurs’ thinking evolves from the emergence of an opportunity idea to the initiation of concrete entrepreneurial acts. In addition, our framework draws attention to cognitive inflection points that entrepreneurs must navigate in their journey toward entrepreneurship. By explicitly locating these inflection points and specifying the changes in mental processing that occurs at each point, we highlight that for entrepreneurial action to ensue, entrepreneurs must shift from one type of cognitive processing to another. Along this line, our model draws attention to the entire set of cognitive “skills” entrepreneurs must master for successful completion of each phase and successful transitions between phases.

Many companies must choose a marketing strategy to promote new products. This includes publishing digital video advertising with interactive features on the Internet. Guided by the attribute-framing theory, this study investigates the impact of the number of positive attribute framings (NPAF) in advertising messages on consumer responses. This study aims to check whether new products are incrementally new products (INPs) or really new products (RNPs).

Content analysis was conducted to identify the forms and components of attribute framing used in advertisements and consumer responses (i.e. review valence). Furthermore, this study followed an expert scoring procedure to identify product newness (INP vs. RNP). Hierarchical polynomial regression analysis was used to investigate the relationship between the NPAF, customer response and product newness.

This study has three main findings: (1) regardless of whether the new product is INP or RNP, there is an inverted U-shaped relationship between NPAF and consumer responses; (2) the inflection point of NPAF (INP) is greater than the inflection point of NPAF (RNP) and (3) the maximum value of consumer response for INP is greater than that for RNP.

This study sheds light on the effectiveness of attribute framing in new product advertising. Compared to previous research on attribute framing of advertising, this study is based on a realistic scenario in which multiple attributes are framed within a given advertisement copy. Furthermore, secondary data were used to test the impact of NPAF on consumer responses and further explore the effects of product newness.