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Compare and contrast how the accounting, organizational behavior and other literatures analyze sunk costs. Sunk costs form a key part of the decision-making component of the management accounting literature, which generally include previously incurred and unrecoverable costs. Management accountants believe, since current or future actions cannot change sunk costs, decision makers should ignore them. Thus, ongoing fixed costs or previously incurred sunk costs, while relevant for matters of accountability such as costing, income determination, and performance evaluation are irrelevant for most short- and long-term decisions. However, the organizational behavior literature indicates that sunk costs affect decision makers’ actions – especially their emotional attachments to the related project and the asymmetry of attitudes regarding the recognizing of losses and gains. Called the “sunk cost effect” or “sunk cost fallacy,” this conflict in sunk costs’ underlying nature reflects one element of incoherence in contemporary accounting discourse. We discuss this sunk cost conflict from an accounting and a philosophical perspective to denote some ambiguities that decision usefulness and accountability introduces into accounting discourse.

Review, summarize and analyze the above literatures

Managerial accountants can apply many lessons from the various literature sources.

We also show how differing opinions on how to treat sunk costs impact a firm’s decision-making process both economically and socially.

To model a bargaining environment where the tactic of qualitative commitment (staking a principle) can have a demonstrably strong effect.

Amend the two‐person alternating offers model due to Rubinstein to include simultaneously pre‐announced stakes, and a mechanism for altering agents' utilities by reference to substantial costs of “surrendering a principle” (capitulation costs). Identify all stationary, pure strategy equilibria. Isolate subgame perfect Nash equilibria (SPNE).

SPNE is unique and offers efficient re‐allocation. For high enough capitulation costs, gains at equilibrium (relative to the bench‐mark game without commitment) result to the first‐mover. The shift in the equilibrium allocation is linear in cost.

Symmetric fixed capitulation costs were assumed. Surrender of principle required introduction of discontinuities in the cost function (zero or fixed cost). No gradation of the cost was considered. Future directions could involve discovering what distortions are created by asymmetric costs, by gradations and from smoothing out of the discontinuity.

Practical implications at best point to the potential rewards available from identifying and introducing a high‐cost commitment tactics in a bargaining context.

The innovation is in the use of an explicit bargaining apparatus to examine the commitment tactic (previous research used an axiomatic treatment of bargaining), and in offering a model for the notion of a qualitative commitment. The result about the qualitative shift in the equilibrium is also new. The paper is thus a contribution to the understanding of how an agent may seek to influence the outcome of a game such as “divide the pie (the resource)” through the manufacture/introduction of a factor outside the original game.

The purpose of this article is to present the results of empirical research concerning the identification of the impact of the transfer of companies from the alternative market to the regulated market of the Warsaw Stock Exchange on their operating and net performance.

The study was conducted based on the empirical data of the companies that changed the listing place on the Warsaw Stock Exchange. Data regarding the years before the transfer were collected from the prospectuses of companies prepared mandatorily in connection with the transition to the regulated market. Data regarding the years of the event and subsequent years were obtained from companies' annual reports. As in other studies in the analysis, the operational metrics were used (operating return on sale, operating return on assets, total asset turnover), which was further extended to net profitability ratios (net return on ale, net return on asset, net return on equity). The significance analysis was based on the Student's t-test and Wilcoxon’s test.

The results show that before the transfer from the alternative market to the regulated market, companies improved financial performance. As a result of the change of listing venues, the results already collapsed in the year of the event. The downward trend continued in the following two years, with a noticeable improvement in the third year after the transfer.

The literature lacks such studies based on the Polish market. To the best knowledge of the author, this is one of the first studies in Poland showing the changes in operating and net performance of companies changing the stock listing venues. The research is based on a large group including all companies that have changed listing venues since the beginning of the alternative market in Poland. The article presents an original empirical result that can be used both by managers and investors in their decisions.

The authors consider the mutual benefits of the ceding company and reinsurance company in the design of reinsurance contracts. Two objective functions to maximize social expected utilities are established, which are to maximize the sum of the expected utilities of both the ceding company and reinsurance company, and to maximize their products. The first objective function, additive, emphasizes the total gains of both parties, while the second, multiplicative, accounts for the degree of substitution of gains of one party through the loss of the other party. The optimal price and retention of reinsurance are found by a grid search method, and numerical analysis is conducted. The results indicate that the optimal solutions for two objective functions are quite different. However, optimal solutions are sensitive to the change of the means and volatilities of the claim loss for both objective functions. The results are potentially valuable to insurance regulators and government entities acting as reinsurers of last resort.

In this paper, the authors apply relatively simple, but in the view significant, methods and models to discuss the optimization of excess loss reinsurance strategy. The authors only consider the influence of loss distribution on optimal retention and reinsurance price but neglect the investment factor. The authors also consider the benefits of both ceding company and reinsurance company to determine optimal premium and retention of reinsurance jointly based on maximizing social utility: the sum (or the product) of expected utilities of reinsurance company and ceding company. The authors solve for optimal solutions numerically, applying simulation.

This paper establishes two optimization models of excess-of-loss reinsurance contract against catastrophic losses to determine optimal premium and retention. One model considers the sum of the expected utilities of a ceding company and a reinsurance company's expected utility; another considers the product of them. With an example, the authors find the optimal solutions of premium and retention of excess loss reinsurance. Finally, the authors carry out the sensitivity analysis. The results show that increasing the means and the volatilities of claim loss will increase the optimal retention and premium. For objective function I, increasing the coefficients of risk aversion of or reducing the coefficients of risk aversion of will make the optimal retention reduced but the optimal premium increased, and vice versa. However, for objective function 2, the change of coefficient of risk aversion has no effect on optimal solutions.

Utility of the two partners: The ceding company and the reinsurance company, may have different weights and different significance. The authors have not studied their relative significance. The simulation approach in numerical methods limits us to the probability distributions and stochastic processes the authors use, based on, generally speaking, lognormal models of rates of return. This may need to be generalized to other returns, including possible models of shocks through jump processes.

In the recent two decades, reinsurance companies have played a great role in hedging mega-catastrophic losses. For example, reinsurance companies (and special loss sharing arrangements) paid as much as two-thirds of the insured losses for the September 11, 2001 tragedy. Furthermore, large catastrophic events have increased the role of governments and regulators as reinsurers of last resort. The authors hope that the authors provide guidance for possible balancing of the needs of two counterparties to reinsurance contracts.

Nearly all governments around the world are engaged in regulation of insurance and reinsurance, and some are reinsurers themselves. The authors provide guidance for them in these activities.

The authors believe this paper to be a completely new and original contribution in the area, by providing models for balancing the utility to the ceding insurance company and the reinsurance company.

我們探討分出公司和再保險公司在再保險合約的設計上、如何能達至互利互惠。研究確立了兩個目標函數，分別為把分出公司和再保險公司兩者之預期效用的總和最大化，以及把它們的產品最佳化。第一個目標函數是加法的，強調兩個參與方的總增益;而第二個目標函數則是乘法的，這個目標函數，闡釋參與方因另一方虧損而有所收益之取代度。再保險的最佳價格和自留額是利用網格搜索法找出的，數值分析也予以進行。研究結果顯示，兩個目標函數的最佳解決方案甚為不同。唯最佳解決方案會對就這兩個目標函數而言的追討損失的波動、以及其平均值之改變產生敏感反應。研究結果將會見其價值於作為在萬不得已的時候的再保險人的保險業規管機構和政府實體。

在這學術論文裡，我們採用了相對簡單、但我們認為是重要的方法和模型，來探討超額賠款再保險策略的優化課題。我們只考慮虧損分佈對最佳自留額和再保險價格的影響，而不去檢視投資因素。我們亦考慮對分出公司和再保險公司兩者的利益，來釐定最佳保費和再保險的自留額，而這兩者則共同建基於把社會效益最大化之上：再保險公司和分出公司的預期效益的總和 (或其積數) 。 我們採用類比模仿方法、來解決尋求在數字上最佳解決方案的問題。

本研究建立了就應對嚴重虧損而設的兩個超額賠款再保險合約的優化模型，來釐定最佳的保費和自留額。其中一個模型考慮了分出公司和再保險公司兩者各自的預期效益的總和。另外的一個模型則考慮了兩者的預期效益的積數。透過例子，我們找到了保費和超額虧損再保險自留額的最佳解決方案。最後，我們進行了敏感度分析。研究結果顯示、若增加追討損失的平均值和波動，則最佳自留額和保費也會隨之而增加。就第一個目標函數而言，若增加風險規避係數、或減少這個係數，則最佳自留額會隨之而減少，但最佳保費卻會隨之而增加，反之亦然。唯就第二個目標函數而言，風險規避係數的改變，對最佳解決方案是沒有影響的。

• – 有關的兩個夥伴之效用性：分出公司和再保險公司或有不同的份量和重要性。我們沒有探討兩者的相對重要性。

• – 我們以數值方法為核心的類比模仿研究法、使我們局限於機率分配和一般而言建基於投資報酬率對數常態模型之隨機過程的使用。我們或許需要調節研究法。以能概括其它回報收益，包括透過跳躍過程而可能達至之沖擊模型。

– 有關的兩個夥伴之效用性：分出公司和再保險公司或有不同的份量和重要性。我們沒有探討兩者的相對重要性。

– 我們以數值方法為核心的類比模仿研究法、使我們局限於機率分配和一般而言建基於投資報酬率對數常態模型之隨機過程的使用。我們或許需要調節研究法。以能概括其它回報收益，包括透過跳躍過程而可能達至之沖擊模型。

在過去20年裡，再保險公司在控制極嚴重災難性的損失上曾扮演重要的角色。例如、再保險公司 (以及特殊的損失分擔安排) 為了2001年9月11日的災難事件而支付多至保險損失的三分之二的費用。而且，重大的災難性事件使政府及作為最後出路再保險人的調控者得扮演更重要的角色。我們希望研究結果能為再保險合約兩對手提供指導，以平衡雙方的需要。

全球差不多每個政府都參與保險和再保險的管理工作，有部份更加本身就是再保險人。研究結果為他們的管理工作提供了指導。

我們相信本學術論文、提供了平衡分出保險公司和再保險公司效用性的模型，就此而言，本論文在相關的領域上作出了全新和獨創性的貢獻。

The main purpose of this paper is to determine the discount function which better fits the individuals' preferences through the empirical analysis of the different functions used in the field of intertemporal choice.

After an in-depth revision of the existing literature and unlike most studies which only focus on exponential and hyperbolic discounting, this manuscript compares the adjustment of data to six different discount functions. To do this, the analysis is based on the usual statistical methods, and the non-linear least squares regression, through the algorithm of Gauss-Newton, in order to estimate the models' parameters; finally, the AICc method is used to compare the significance of the six proposed models.

This paper shows that the so-called q-exponential function deformed by the amount is the model which better explains the individuals' preferences on both delayed gains and losses. To the extent of the authors' knowledge, this is the first time that a function different from the general hyperbola fits better to the individuals' preferences.

This paper contributes to the search of an alternative model able to explain the individual behavior in a more realistic way.

Insurance frauds deeply affect insurance companies, policyholders, and the insurance industry as a whole. The cost of fraudulent damage affects the profitability of companies, and has negative effects on the society in terms of moral values. Increases in insurance costs can lead to increases in the premiums paid by policyholders, each family, and, ultimately, all of the insured. Recently, new legal regulations related to this issue have been performed in Turkey and higher institutions have been created. A regulation issued by the Under-secretariat of the Treasury, on June 1, 2011, defines insurance fraud as aggravated fraud. Insurance fraud in Turkey usually takes the form of intentional misrepresentations of facts to the insurance company to get the company to pay for something not actually covered by the policy. Studies examined the insurance industry in terms of the concept of financial crime, and inclusion of the concept of financial crime in insurance regulations was proposed since financial crimes have an important place in the current problems of the industry. In addition, it is seen that insurance frauds have changed over time as a result of studies.

In Nigeria, family is most important. It is usually made up of people who are related by blood, marriage, or adoption. Family plays a major role in influencing the use of psychoactive substances by adolescents and can help protect the adolescents or the reverse. Family differs in so many ways, for example, in the extent of support for education, children’s upbringing, monitoring peer activities among others. There are certain family situations where values are not being instilled, parental and social guides are not in place to ensure that children are well brought up. High levels of economic hardship (such as unemployment), family conflict, poor communication skills, domestic violence, parental divorce or single parenting, death, parental criminal activity among others disrupt parenting which reduces adolescents’ emotional security and reinforce the use of aggression and interpersonal hostility which in turn expose them to certain risks of psychoactive substance use. It is in this context that this chapter examines how family factors affect the use of psychoactive substances among adolescents in Nigeria. Empirical investigations were carried out through a review of literature search. The findings show family factors having a significant influence on the use of psychoactive substances among adolescents in Nigeria. In addition, proper parental relationship through training of moral values, teachings of the immense danger attributed to the use of psychoactive substances through counseling and communication skills could serve as a control measure that will discourage the future use and thus improve the health, safety and the general well-being of the adolescents.

The analysis of criminality among older offenders is particularly important in the context of the changing age structure of Polish society. The share of older people among the inhabitants of Poland is increasing (from 10% in the 1990s to 17% in 2017), and this trend – as shown in the official statistical data – will remain consistent. It is estimated that by 2050, 33% of Polish society will be over 65 years of age. Doubtless this change will influence crime patterns – in particular the age of offenders and the crime structures. It is already visible in the statistics that within the population of convicted persons, the share of people aged 60+ has been increasing for several years (from 3.1% in 2007 to 4.8% in 2017). But the criminality of the older offenders differs from general crime patterns. Driving while intoxicated is the most common reason for convicting a person above 60.

The aim of this chapter is to present the spectrum of crimes committed by older offenders in Poland. The analysis was based on the findings from the field research conducted by the author. The research covered in-depth analysis of the data retrieved from 353 criminal court cases when the convicted perpetrator was at least 60 years of age at the time of offending. The data was used to analyse patterns of offending in older age, the types of crimes committed by older perpetrators and their circumstances, and the portrait of the victims of those offences. In addition, the author focused on the problem of appearance of offending in the life course of older offenders.

The purpose of this paper is to survey the automobile insurance fraud detection literature in the past 31 years (1990–2021) and present a research agenda that addresses the challenges and opportunities artificial intelligence and machine learning bring to car insurance fraud detection.

Content analysis methodology is used to analyze 46 peer-reviewed academic papers from 31 journals plus eight conference proceedings to identify their research themes and detect trends and changes in the automobile insurance fraud detection literature according to content characteristics.

This study found that automobile insurance fraud detection is going through a transformation, where traditional statistics-based detection methods are replaced by data mining- and artificial intelligence-based approaches. In this study, it was also noticed that cost-sensitive and hybrid approaches are the up-and-coming avenues for further research.

This paper’s findings not only highlight the rise and benefits of data mining- and artificial intelligence-based automobile insurance fraud detection but also highlight the deficiencies observable in this field such as the lack of cost-sensitive approaches or the absence of reliable data sets.

This paper offers greater insight into how artificial intelligence and data mining challenges traditional automobile insurance fraud detection models and addresses the need to develop new cost-sensitive fraud detection methods that identify new real-world data sets.

In the modern increasingly competitive milieu of cause marketing activities, both profit and nonprofit organizations expect their advocation of prosocial programs to gain the support of target customers. Previous research shows the effect from adding participant's personal attributes or social influence factors. This study considers the effects of benefit incentives and cost/reward influences to enhance prosocial behaviors.

Three between-subject experiments were conducted and SPSS Statistics ANOVA was employed to analyze the experimental results.

Rewarding time delays and prosocial efforts have no significant impact on the relationship between other-benefit incentives and willingness to engage in prosocial behaviors, but do significantly impact the self-benefit incentives condition. However, the negative effect of self-benefit condition can be mitigated by high rewards.

Since prosocial campaigns proposed by organizations in this study include both profit and nonprofit organizations, perhaps two category organization types should be attentively classified to evaluate the effects.

Under social marketing campaigns with self-benefit incentives conditions, the empirical findings of this study show that profit and nonprofit organizations can provide higher reward values to mitigate the adverse effects of high participating costs.

Social marketing campaigns with other-benefit incentives are less affected by high participating costs and highlight the value of altruism.

This study provides valuable suggestions for both profit and nonprofit organizations to use self-benefit/other-benefit incentives under cost related factors influence to encourage customers' prosocial behaviors.