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Many of the industrially important processes follow a complex reaction scheme and more than one reaction takes place simultaneously for these systems. Design and scale up of these processes are important but due to the nature of the system and high numbers of the affected parameters, modeling of the complex reactions becomes correspondingly difficult. The purpose of this paper is to develop a general model, which can simplify modeling of such (or similar) complex reactions.

Virtual model is a generalized novel approach for modeling of these complex reactions. In this model, the complex reactions have been imagined as a simple reaction. Now, kinetic and structural parameters of this simple reaction have been obtained by fitting the model relationships with the experimental data.

In this work, the ability of the virtual model has been validated using the experimental data pertinent to the reduction of molybdenum disulfide and cuprous sulfide by hydrogen in the presence of lime.

Virtual model is a generalized novel approach for modeling of these complex reactions. In this model, the complex reactions have been imagined as a simple reaction.

The purpose of this paper is to present the results of studies on the reaction of metal oxides such as Cr₂O₃ and Al₂O₃ with Na₂SO₄ in flowing SO₂ (g) at 1,100 and 1,200 K.

The oxides chosen for the studies were initial scaling products during the oxidation of industrial alloys and invariably are involved in hot‐corrosion reactions in the presence of molten salts. The thermo‐gravimetric studies for the system were carried out as a function of Na₂SO₄ in the mixture. The different constituents in the reaction products were identified by XRD analysis and morphologies of the reaction products were discussed on the basis of optical metallography and scanning electron microscopic studies. The pH and conductivity of the aqueous solutions of reaction products were measured and an attempt made to functionalize these parameters with Na₂SO₄ concentration in the mixture. Quantitative estimation of the soluble metal was carried out using an atomic absorption spectrophotometer. The formation of products was investigated by thermodynamic computation of free energies of the reactions and the study of relevant phase stability diagrams.

Looking at the complex nature of the reactions, it is difficult to generalize the conductance studies, as many complex species are liable to hydrolyze in the aqueous solution. However, the break in few curves at certain mole fraction of Na₂SO₄ indicates the presence of soluble complex species.

The paper provides information regarding the reaction between a pertinent oxide and Na₂SO₄ and proper identification of reaction products, useful for understanding the occurrence and importance of fluxing reactions and in the interpretation of hot corrosion mechanism and the development of new protective materials.

Based on the theory of blown‐ups, in this paper, we will analyze chemical reaction problems, such as the rate of chemical reactions, gaseous chemical reactions, liquid chemical reactions, Schlogl’s model and the reaction diffusion equation. This study not only applies the theory of blown‐ups, but also offers a new method and a new thinking logic for nonlinear chemical dynamics. And, in a certain sense, this study brings new insight to the chemical dynamics and related research in laboratories.

Human beings are dependent upon social approval to strengthen their identities. Therefore, they practice impression management: They anticipate which behaviour provokes which reactions in their social environment, and they tend to exhibit the kind of behaviour that promises positive feedback. Based on the assumption that human beings also show this behaviour in their choice of vocation, we hypothesise that young people are more likely to expect negative reactions from their social environment when choosing a gender-atypical occupation. Furthermore, we assume that the expected reaction of the social environment influences vocational orientation: The anticipation of negative reactions to gender-atypical vocational choice might contribute to explain why young people ignore this occupation. We tested both hypotheses with the help of data retrieved from a survey of young people in Germany who are interested in vocational education and training (VET). The results support our hypotheses; however, they also show that the relevance of a gender-typed vocational choice is weaker if adolescents have a higher educational background. In this case, the choice of an occupation that expresses a high educational status becomes more important. It may lead to an exclusive kind of social approval that is denied to people with a lower educational background.

Purpose – This study examines both the short- and long-term share price reaction to announcements of financial restatements cited in the U.S. General Accounting Office (2006) database.

Methodology – It uses the augmented four-factor Fama-French model for assessing share price reaction.

Findings – The study finds that the average cumulative abnormal return (CAR) for a sample of 553 restatements (by 437 companies) is significantly negative (−1.58) for the three-day window surrounding the day of announcement. The average CAR for the one-year period prior to the announcement (−9.6%) and for each of the four years after the announcement is negative as well, with the average CAR for the four years adding up to −22%. The study also documents differences in CARs based on the entity prompting the restatement (company, auditor, and Securities and Exchange Commission), the reason behind the restatement (revenue, cost, reclassification of item, etc.), and for one-time versus repeat offenders.

Social implications – Taken together, the findings indicate that financial restatements impose significant short-term as well as long-term costs on shareholders.

Originality/Value – The evidence about long-term share price reaction to financial restatements is missing in prior research. The relationship between long-term and short-term share price reaction to financial restatements fails to suggest systematic over/underreaction by the market.

Using social network theory (SNT), this study empirically examines the impact of digital supply chain announcements disclosing corporate social responsibility (CSR) information on stock market value.

Based on 172 digital supply chain announcements disclosing CSR information from Chinese A-share listed companies, this study uses event study method to test the hypotheses.

First, digital supply chain announcements disclosing CSR information generate positive and significant market reactions, which is timely. Second, strategic CSR and value-based CSR disclosed in digital supply chain announcements have a more positive impact on stock market, however there is no significant difference when the CSR orientation is either towards internal or external stakeholders. Third, in terms of digital supply chain network characteristics, announcements reflecting higher relationship embeddedness and higher digital breadth and depth lead to more positive increases of stock value.

First, the authors consider the value of CSR information in digital supply chain announcements, using an event study approach to fill the gap in the related area. This study is the first examination of the joint impact of digital supply chain and CSR on market reactions. Second, compared to the previous studies on the single dimension of digital supply chain technology application, the authors innovatively consider supply chain network relationship and network structure based on social network theory and integrate several factors that may affect the market reaction. This study improves the understanding of the mechanism between digital supply chain announcements disclosing CSR information and stock market, and informs future research.

We examine the stock market reaction to the Tax Cuts and Jobs Act (TCJA) of 2017 during its enactment process, focusing on its international provisions. Consistent with extant evidence, we find lower returns for high-foreign-activity firms, indicating a negative market reaction to the international provisions overall. Considering specific international provisions, we find that the market reaction was more positive (negative) for firms likely most affected by the shift to a quasi-territorial system for taxing foreign earnings (the transition tax on existing unrepatriated earnings, the tax on global intangible low-taxed income, and/or the base erosion and antiabuse tax) than for other firms. Our findings imply that investors are able to disentangle the economic implications of complex and interactive tax law changes.

Misconduct allegations have been found to not only affect the alleged firm but also other, unalleged firms in form of reputational and financial spillover effects. It has remained unexplored, however, how the number of prior allegations against other firms matters for an individual firm currently facing an allegation. Building on behavioral decision theory, we argue that the relationship between allegation prevalence among other firms and investor reaction to a focal allegation is inverted U-shaped. The inverted U-shaped effect is theorized to emerge from the combination of two effects: In the absence of prior allegations against other firms, investors fail to anticipate the focal allegation, and hence react particularly negatively (“anticipation effect”). In the case of many prior allegations against other firms, investors also react particularly negatively because investors perceive the focal allegation as more warranted (“evaluation effect”). The multi-industry, empirical analysis of 8,802 misconduct allegations against US firms between 2007 and 2017 provides support for our predicted, inverted U-shaped effect. Our study complements recent misconduct research on spillover effects by highlighting that not only a current allegation against an individual firm can “contaminate” other, unalleged firms but that also prior allegations against other firms can “contaminate” investor reaction to a focal allegation against an individual firm.