A MIXED INTEGER LINEAR PROGRAMMING EVALUATION OF SALINITY AND WATERLOGGING CONTROL OPTIONS IN THE MURRAY-DARLING BASIN OF AUSTRALIA

Pollution of the River Murray by salt imposes costs on domestic and industrial users in Adelaide and to irrigators on the River Murray. Salt enters the Murray-Darling system through saline ground water aquifers and from irrigation and drainage of saline land. Irrigation and drainage generate benefits from improved agricultural productivity and impose costs through increased salt loads to the Murray-Darling system. The salinity of the River Murray can be reduced by pumping highly saline ground water into evaporation basins before it enters the River Murray. This paper presents a mixed integer linear programming model which is used to determine the mix of ground water interception schemes and land improvement schemes that minimises the net present value (over a time horizon of 30 years) of total Murray-Darling Basin costs due to salinity and waterlogging. By varying a target salinity level, the mix of works that yields various salinity targets in the River Murray at minimum cost is obtained. The sensitivity of the optimal solution to prescribed changes in costs and benefits of projects and to a longer planning horizon is examined.     

Theorizing collaboration practice

This article provides an overview of the theory of collaborative advantage. This is a practice-oriented theory concerned with enhancing practical understanding of the management isssues involved in joint working across organizations. Two contrasting concepts are central to it: collaborative advantage which is concerned with the potential for synergy from working collaboratively; and, collaborative inertia which relates to the often disappointing output in reality. The theory is structured as a set of overlapping themes, which are predominantly issues that practitioners see as causing pain and reward in collaborative situations. Five example themes are discussed: common aims; power; trust; membership structures; and, leadership. It is argued that the theory captures the complexity that underlies collaborative situations and conveys it in a way that seems real to those involved. It aims to empower those involved through legitimising experienced frustration and providing conceptual handles to help address the practical issues involved.     

The Association of Meaningfulness,Well‐Being,and Engagement with Absenteeism: A Moderated Mediation Model

We theorized that absence from work is a resource‐based process that is related to perceived meaningfulness of work, well‐being, and engagement. Broaden‐and‐build theory (Fredrickson, 1998, 2001) and engagement theory (Bakker, Schaufeli, Leiter, & Taris, 2008; Kahn, 1990) were used to develop a framework for explaining absence. Results of a study of 625 employees and human resource records of subsequent absenteeism data for a three‐month period supported our hypotheses that meaningful work increases engagement with work, and that engagement is associated with low levels of absenteeism. Furthermore, data showed that engagement fully mediated the relationship between meaningfulness and absence, and that well‐being strengthened the relationship between meaningfulness and engagement. The results have implications for understanding the role of individual‐level resources in the workplace, and how meaningfulness, well‐being, and engagement influence absence.     

The Effect of Accounting Education and National Culture on Accounting Judgments: A Comparative Study of Anglo-Celtic and Chinese Culture

Countries adopting International Financial Reporting Standards (IFRS) need to educate and train their professional accountants so that they are able to interpret and apply IFRS in a consistent manner. This study examines the effect of national culture and education on the judgments of Australian (Anglo-Celtic) and Chinese final year undergraduate accounting students in Australia. It seeks to understand whether culture influences student interpretation and application of uncertainty expressions, which are used as recognition and disclosure thresholds in IFRS. Results obtained on the cultural dimensions of Uncertainty Avoidance, Individualism, Power Distance, Masculinity and Long-Term Orientation provide evidence that Chinese students exhibit greater conservatism and secrecy compared to Australian students. The results of the study indicate that national culture has a significant effect on the judgments of accounting students when interpreting and applying selected IFRS containing uncertainty expressions. The results also imply that educational similarity does not moderate the effect of culture in influencing the judgments of accounting students. An important implication of the study is that regulators and standard-setters involved in the international convergence of accounting standards need to pay greater attention to cultural factors that may result in a difference in the interpretation and application of IFRS.     

Tourism and the smartphone app: capabilities,emerging practice and scope in the travel domain

Based on its advanced computing capabilities and ubiquity, the smartphone has rapidly been adopted as a tourism travel tool. With a growing number of users and a wide variety of applications emerging, the smartphone is fundamentally altering our current use and understanding of the transport network and tourism travel. Based on a review of smartphone apps, this article evaluates the current functionalities used in the domestic tourism travel domain and highlights where the next major developments lie. Then, at a more conceptual level, the article analyses how the smartphone mediates tourism travel and the role it might play in more collaborative and dynamic travel decisions to facilitate sustainable travel. Some emerging research challenges are discussed.     

The Effects of Corporate Social Performance on the Cost of Corporate Debt and Credit Ratings

This study investigates the differential impact that various dimensions of corporate social performance have on the pricing of corporate debt as well as the assessment of the credit quality of specific bond issues. The empirical analysis, based on an extensive longitudinal data set, suggests that overall, good performance is rewarded and corporate social transgressions are penalized through lower and higher corporate bond yield spreads, respectively. Similar conclusions can be drawn when focusing on either the bond rating assigned to a specific debt issue or the probability of it being considered to be an asset of speculative grade.     

Financial flexibility,corporate investment and performance: evidence from financial crises

This study examines the impact of financial flexibility on the investment and performance of East Asian firms over the period 1994–2009. We employ a sample of 1,068 firms and place particular emphasis on the periods of the Asian crisis (1997–1998) and the recent credit crisis (2007–2009). The results show that firms can attain financial flexibility, primarily through conservative leverage policies and less commonly by holding large cash balances. Financial flexibility appears to be an important determinant of investment and performance, mainly during the Asian 1997–1998 crisis. In particular, firms that are financially flexible prior to this crisis (1) have a greater ability to take investment opportunities, (2) rely much less on the availability of internal funds to invest, and (3) perform better than less flexible firms during the crisis. Our analysis covering the credit crisis period of 2007–2009 suggests that some of the advantages of flexible firms towards investing persist but are significantly less pronounced over that period. We also find that the value of financial flexibility is region/country specific, which may be explained by the fact that different regions/countries often adopt different macroeconomic policies and operate in diverse economic/legal environments.     

Value elicitation for multiple quantities of a quasi‐public good using open ended choice experiments and uniform price auctions

Choice experiments and experimental auctions have become popular mechanisms for estimating willingness to pay (WTP). However, these methods have primarily been used for estimating WTP for single units of goods. We analyze the results from experimental auctions and choice experiments in the context of multiple quantities of a quasi‐public good (animal welfare product). We show that the use of WTP values for a single unit of a product, a common practice in experimental valuation literature, can result in underestimation of aggregate demand. We use and compare open ended choice experiments (OECE), second price Vickrey auctions, and random Nth price auctions as mechanisms for valuing WTP. Our results also suggest that individual level demand estimates from OECE are less elastic than demand estimates from uniform price auctions.     

The Effects of Contextual and Wrongdoing Attributes on Organizational Employees’ Whistleblowing Intentions Following Fraud

Recent financial fraud legislation such as the Dodd–Frank Act and the Sarbanes–Oxley Act (U.S. House of Representatives, Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, [H.R. 4173], 2010; U.S. House of Representatives, The Sarbanes–Oxley Act of 2002, Public Law 107-204 [H.R. 3763], 2002) relies heavily on whistleblowers for enforcement, and offers protection and incentives for whistleblowers. However, little is known about many aspects of the whistleblowing decision, especially the effects of contextual and wrongdoing attributes on organizational members’ willingness to report fraud. We extend the ethics literature by experimentally investigating how the nature of the wrongdoing and the awareness of those surrounding the whistleblower can influence whistleblowing. As predicted, we find that employees are less likely to report: (1) financial statement fraud than theft; (2) immaterial than material financial statement fraud; (3) when the wrongdoer is aware that the potential whistleblower has knowledge of the fraud; and (4) when others in addition to the wrongdoer are not aware of the fraud. Our findings extend whistleblowing research in several ways. For instance, prior research provides little evidence concerning the effects of fraud type, wrongdoer awareness, and others’ awareness on whistleblowing intentions. We also provide evidence that whistleblowing settings represent an exception to the well-accepted theory of diffusion of responsibility. Our participants are professionals who represent the likely pool of potential whistleblowers in organizations.     

Symbiotic ownership,cultural alignment,and firm performance: A test among international strategic alliances

Based on a sample of 61 international firms in China with industry symbiosis, we examine the effects of cultural alignment on firm performance. We first predict that symbiosis will have a negative effect on firm performance. After that, focusing on the most dimension of culture, i.e., collectivism/individualism, we also predict that in a society with a high collectivistic value, organizational collectivism will be positively correlated with firm performance because of its alignment with the prevailing societal culture. Finally, we predict that this cultural value should have a moderating effect on the relationship between symbiosis and performance. Data are collected from multiple sources to test these predictions. The results of the data analyses show the benefits of building a collectivistic organizational culture for firms with a high level of industry symbiosis.