Search results
1 – 10 of 167David M. Wallace and Stephen J. Zaccaro
We present a framework for understanding the relationship between individual differences in leaders’ motivations and their engagement in leader development, and we empirically…
Abstract
We present a framework for understanding the relationship between individual differences in leaders’ motivations and their engagement in leader development, and we empirically test that framework across three different operationalizations of engagement, demonstrating that the motivation to develop as a leader (MTDL) is distinct from other motivational constructs (specifically, motivation to lead and motivation to learn) and that MTDL differentially predicts engagement in leader development. Finally, we provide evidence that motivation and engagement mutually reinforce each other in a virtuous spiral during leader development.
Bradley M. Coleman, Jonathan Orsini, J.C. Bunch and Laura L. Greenhaw
Undergraduate agricultural leadership education opportunities are prevalent and growing. However, additional attention should be placed on the quality of educational leadership…
Abstract
Undergraduate agricultural leadership education opportunities are prevalent and growing. However, additional attention should be placed on the quality of educational leadership experiences. The purpose of this study was to explore how the context of a learning experience impacts student application of team leadership skills. The findings and implications of this study are reported in three themes: (a) contextual dimensions of educational experiences, (b) agricultural disconnect, and (c) team leadership skill application. Recommendations for practitioners include providing students with real-life leadership skill application experiences, regulating assignments to have agricultural connections, and integrating opportunities for student reflection. Future research should consider questions such as: (a) what other educational leadership experiences may have considerable learning impacts? and (b) what other pedagogical methodologies are useful in teaching agricultural and team leadership education?
Ben M. Roberts, David Allinson and Kevin J. Lomas
Accurate values for infiltration rate are important to reliably estimate heat losses from buildings. Infiltration rate is rarely measured directly, and instead is usually…
Abstract
Purpose
Accurate values for infiltration rate are important to reliably estimate heat losses from buildings. Infiltration rate is rarely measured directly, and instead is usually estimated using algorithms or data from fan pressurisation tests. However, there is growing evidence that the commonly used methods for estimating infiltration rate are inaccurate in UK dwellings. Furthermore, most prior research was conducted during the winter season or relies on single measurements in each dwelling. Infiltration rates also affect the likelihood and severity of summertime overheating. The purpose of this work is to measure infiltration rates in summer, to compare this to different infiltration estimation methods, and to quantify the differences.
Design/methodology/approach
Fifteen whole house tracer gas tests were undertaken in the same test house during spring and summer to measure the whole building infiltration rate. Eleven infiltration estimation methods were used to predict infiltration rate, and these were compared to the measured values. Most, but not all, infiltration estimation methods relied on data from fan pressurisation (blower door) tests. A further four tracer gas tests were also done with trickle vents open to allow for comment on indoor air quality, but not compared to infiltration estimation methods.
Findings
The eleven estimation methods predicted infiltration rates between 64 and 208% higher than measured. The ASHRAE Enhanced derived infiltration rate (0.41 ach) was closest to the measured value of 0.25 ach, but still significantly different. The infiltration rate predicted by the “divide-by-20” rule of thumb, which is commonly used in the UK, was second furthest from the measured value at 0.73 ach. Indoor air quality is likely to be unsatisfactory in summer when windows are closed, even if trickle vents are open.
Practical implications
The findings have implications for those using dynamic thermal modelling to predict summertime overheating who, in the absence of a directly measured value for infiltration rate (i.e. by tracer gas), currently commonly use infiltration estimation methods such as the “divide-by-20” rule. Therefore, infiltration may be overestimated resulting in overheating risk and indoor air quality being incorrectly predicted.
Originality/value
Direct measurement of air infiltration rate is rare, especially multiple tests in a single home. Past measurements have invariably focused on the winter heating season. This work is original in that the tracer gas technique used to measure infiltration rate many times in a single dwelling during the summer. This work is also original in that it quantifies both the infiltration rate and its variability, and compares these to values produced by eleven infiltration estimation methods.
Details
Keywords
Stephen Bahadar and Rashid Zaman
Stakeholders' uncertainty about firms' value drives their urge to get information, as well as managerial disclosure choices. In this study, the authors examine whether and how an…
Abstract
Purpose
Stakeholders' uncertainty about firms' value drives their urge to get information, as well as managerial disclosure choices. In this study, the authors examine whether and how an important source of uncertainty – the recent COVID-19 pandemic's effect on corporate social responsibility (CSR) disclosure – is beyond managerial and stakeholders' control.
Design/methodology/approach
The authors develop a novel construct for daily CSR disclosure by employing computer-aided text analysis (CATA) on the press releases issued by 125 New Zealand Stock Exchange (NZX) listed from 28 February 2020 to 31 December 2020. To capture COVID-19 intensity, the authors use the growth rate of the population-adjusted cumulative sum of confirmed cases in New Zealand on a specific day. To examine the association between the COVID-19 outbreak and companies' CSR disclosure, the authors employed ordinary least squares (OLS) regression by clustering standard error at the firm level.
Findings
The authors find a one standard deviation increase in the COVID-19 outbreak leads to a 28% increase in such disclosures. These results remained robust to a series of sensitivity tests and continue to hold after accounting for potential endogeneity concerns. In the channel analysis, the study demonstrates that the positive relationship between COVID-19 and CSR disclosure is more pronounced in the presence of a well-structured board (i.e. a large, more independent board and with a higher proportion of women on it). In further analysis, the authors find the documented relationship varies over the pandemic's life cycle and is moderated by government stringency response, peer CSR pressure and media coverage.
Originality/value
This paper is the first study that contributes to the scant literature examining the impact of the COVID-19 outbreak on CSR disclosure. Prior research either investigates the relationship of the CSR-stock return during the COVID-19 market crisis or examines the relationship between corporate characteristics including the quality of financial information and the reactions of stock returns during COVID-19. The authors extend such studies by providing empirical evidence that managers respond to COVID-19 by increasing CSR disclosure.
Details