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The increasing number of online courses in higher education has provided students with convenience and flexibility. However, some adverse effects also come with online learning, including negatively affecting student beliefs in themselves and their perceptions of the instructor. Both are important factors for academic success. Grounded in media richness theory, this study aims to examine the impact of medium choices by investigating instructor messages on student beliefs and perceptions in an online course.

This study employs a survey methodology using validated items to assess university student perceptions following faculty interactions (video versus customized email).

The authors find that videos and personalized emails, using mass distribution Excel features, help increase student beliefs, including social belongingness and self-efficacy, and improve students' perceptions of the instructor and learning environment.

This study contributes to the literature by establishing that the richness of media of faculty messages can impact student beliefs, which in turn, may help with student success and retention. The activities used in this study are low-effort for the instructor and may have lasting effects on the students. In addition, this study fills a gap in the literature by examining multiple forms of the richness of media and their impact on multiple aspects of students' beliefs and perceptions of the instructor.

Motivated by managers’ intentions to pursue private interests by engaging in earnings management, this paper aims to investigate whether voting with hands (shareholders cast votes on shareholder proposals) by shareholders acts as an external disciplining mechanism over earnings management relative to corporate governance. Also, as corporate governance can scrutinize managers’ behavior, this study also examines whether there is a substitutive relation between shareholder proposals and corporate governance mechanism.

First, this paper uses ordinary least squares (OLS) regressions of discrepancy accruals on the percentage of “For” votes for shareholder proposals to test the incremental effect of shareholder proposals on earnings management. Second, firms receiving shareholder proposals are matched with those not receiving proposals by propensity scores, and the levels of earnings management and corporate governance between these two groups are compared by univariate analysis and OLS regressions. In addition, six portfolios are created based on whether firms receive shareholder proposals, as well as on the levels of corporate governance, to assess whether external control from shareholder proposals can substitute internal control for corporate governance in disciplining earnings management. Regressions of earnings management on corporate governance (shareholder proposals) are conducted in the sub-samples formed on shareholder proposals (corporate governance) to further explore the above substitution effects.

Based on a sample of 2,041 firm-year observations from 2001 to 2010, this paper finds that the “For” votes received from the shareholder proposals have a significant negative relationship with the practice of earnings management, even when corporate governance is controlled. The negative relationship between shareholder proposal and magnitude of earnings management is also found to be stronger when firms have weak corporate governance. The overall evidence suggests that the external control from “voting-with-hand” shareholders has a significant impact on earnings management. In addition, shareholder proposals can substitute the monitoring mechanism for corporate governance in constraining managers’ myopic behavior.

This paper contributes to the extant literature by using the percentage of “For” votes for shareholder proposals as a proxy for shareholder pressure and concerns. This study contributes to the earnings management literature by showing the disciplinary effect of outside shareholders on managers’ reporting behavior. Also, it contributes to the corporate governance research by presenting that shareholder proposals can substitute for the internal control of corporate governance in decreasing earnings management. This paper should be of interest to investors and standard setters.

The purpose of this paper is to solve the problem that the location of the initiation point cannot be measured accurately in the shallow underground space, this paper proposes a method, which is based on fusion of multidimensional vibration sensor information, to locate single shallow underground sources.

First, in this paper, using the characteristics of low multipath interference and good P-wave polarization in the near field, the adaptive covariance matrix algorithm is used to extract the polarization angle information of the P-wave and the short term averaging/long term averaging algorithm is used to extract the first break travel time information. Second, a hybrid positioning model based on travel time and polarization angle is constructed. Third, the positioning model is taken as the particle update fitness function of quantum-behaved particle swarm optimization and calculation is performed in the hybrid positioning model. Finally, the experiment verification is carried out in the field.

The experimental results show that, with root mean square error, spherical error probable and fitness value as evaluation indicators, the positioning performance of this method is better than that without speed prediction. And the positioning accuracy of this method has been improved by nearly 30%, giving all of the three tests a positioning error within 0.5 m and a fitness less than 1.

This method provides a new idea for high-precision positioning of shallow underground single source. It has a certain engineering application value in the fields of directional demolition of engineering blasting, water inrush and burst mud prediction, fuze position measurement, underground initiation point positioning of ammunition, mine blasting monitoring and so on.

Starting from the theoretical mechanism of profit sharing between finance and the real economy, this paper reviews and analyzes the profitability of China's banking industry and makes a horizontal comparison with the banking industry of the United States, Japan, and Germany.

Based on the panel threshold model, it is found that there is a dual-threshold asymmetric effect between banking profit and the growth of real economy. When the net profit rate of the banking industry is lower than 0.491%, the increase in banking profitability will inhibit the growth of real economy due to profit grabbing; when the rate falls within the range of 0.491–0.801%, the increase in bank profitability is conducive to the growth of real economy.

Finance and the real economy are in the most comfortable symbiotic state; when the rate is higher than 0.801%, the continued increase in bank profitability will weaken the promotion effect of finance on the real economy, but bank profitability and the growth of real economy are still in a symbiotic state of positive promotion.

The promotion effect of China's bank profitability to the growth of real economy has shifted from the suboptimal state to the optimal range as a whole, which is attributed to the strong deleveraging and strict supervision of the Chinese government after 2016, the timely and decisive “stepping on the brakes”, pulling the financial sector back from the “illusion” caused by “self-circulated” profits and preventing it from harming the real economy.

The purpose of this paper is to explore the indirect effect of smartphone-brand tribalism on the need for achievement.

Using survey data from 272 South Korean respondents, path analysis is used to evaluate the hypotheses.

Only the sense of community dimension of brand tribalism affects brand pride (P_RIDE), which in turn leads to a sequential process of brand attitude, purchase intention, and need for achievement (N_ACHIEVE).

South Korean data may confine generalizability. As effect sizes in this context are understood, researchers have an additional benchmark for future brand tribalism and P_RIDE research.

The psychological underpinning and, the presence of brand tribes in society cannot be overlooked by strategists. Such tribal-laden following is also evident within smartphone communities. By further understanding brand tribalism outcomes, marketers and brand leaders are in an improved position to develop strategies that appeal to targeted customers, ultimately growing and strengthening their brand tribes.

Supported by the anthropological view of brand tribalism, this research contributes to the branding literature by examining the indirect effects of brand tribalism on the N_ACHIEVE through brand-related attitudes and behavioral intentions. Where previous research using westerners indicates the explanatory power of defense of the tribe on brand-related factors, no effect in this regard is found here using eastern smartphone consumers.