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1.
Autoimmune hepatitis is an uncommon disease causing chronic inflammation of the liver and associated with various circulating autoantibodies. It shares some characteristics with other autoimmune liver diseases, such as primary biliary cirrhosis and sclerosing cholangitis. There has been confusion in past years regarding this entity, but there are now recognized diagnostic criteria by which to make a proper diagnosis. The disease is usually treatable with steroids. Certain proportions of treated patients become cured, although relapse is a problem often requiring chronic administration of steroid therapy. The expected mortality is close to normal in individuals who are cured or have only mild disease.  相似文献   

2.
We examine an analyst’s sale and distribution of information related to short-term price movements but unrelated to underlying firm value. By selling non fundamental information, the analyst increases competition on the signal, but prices become more sensitive to net order flow, creating an offsetting increase in the non fundamental signal’s value. More precise non fundamental information is more widely distributed. In the limit, a perfect non fundamental signal will be publicly disclosed for an arbitrarily small fee, and the analyst earns profits as if he possessed fundamental information. Consistent with empirical findings, analysts’ recommendations can be profitable, even when widely distributed or seemingly inconsistent with detailed forecasts. Analysis based on non fundamental information does not contribute to greater price efficiency but reduces liquidity costs. In a multi-period setting, traders with non fundamental information do not front-run, preferring to transact only in the period in which uninformed demand is executed.  相似文献   

3.
Nonalcoholic fatty liver disease (NAFLD) is defined as fatty infiltration of the liver exceeding 5% to 10% by weight. It is a spectrum of disorders ranging from simple fatty liver (steatosis without liver injury), nonalcoholic steatohepatitis (steatosis with inflammation), and fibrosis/cirrhosis that resembles alcohol-induced liver disease but which develops in individuals who are not heavy drinkers. NAFLD is likely the most common cause of chronic liver disease in many countries. NAFLD may also potentiate liver damage induced by other agents, such as alcohol, industrial toxins and hepatatrophic viruses. The lack of specific and sensitive noninvasive tests for NAFLD limits reliable detection of the disease. It is often diagnosed on a presumptive basis when liver enzyme elevations are noted in overweight or obese individuals without identifiable etiology for liver disease, or when imaging studies suggest hepatic steatosis. NAFLD is now considered to be a component of the insulin resistance syndrome (metabolic syndrome X). Controversy exists relative to optimal recognition, diagnosis and management of these conditions, and treatment recommendations are evolving.  相似文献   

4.
Medicaid is a government programme that also provides health insurance to the elderly who have few assets and either low income or catastrophic health care expenses. We ask how the Medicaid rules map into the reality of Medicaid recipiency, and we ask what other observable characteristics are important to determine who ends up on Medicaid. The data show that both singles and couples with high retirement income can end up on Medicaid at very advanced ages. We find that, conditioning on a large number of observable characteristics, including those that directly relate to Medicaid eligibility criteria, single women are more likely to end up on Medicaid – so are non‐white people, but, surprisingly, their higher recipiency is concentrated in the higher income percentiles. We also find that people with low incomes who have a high‐school diploma or higher degree are much less likely to end up receiving Medicaid than their less‐educated counterparts. All of these effects are large and depend on retirement income in a very non‐linear way.  相似文献   

5.
The objective of this article is to revisit the literature on Big‐N audit fee premiums in the municipal setting using a methodology that controls for self‐selection bias. Because auditor choices can be predicted based on certain client characteristics, using standard one‐stage ordinary least squares regressions to draw inferences about the presence or absence of such a premium in the extant public‐sector audit fee studies may not be appropriate. Results indicate that, after controlling for a self‐selection bias, Big‐6 (non‐Big‐6) municipal clients on average pay a fee premium, compared to the case if they were to retain a non‐Big‐6 (Big‐6) auditor. Results continue to hold when we conduct further analyses on a subset of municipalities with access to both Big‐6 and non‐Big‐6 auditors in a local market defined by a 60‐km radius, rather than over a province‐wide audit market. The existence of non‐Big‐6 audit fee premiums has not been documented previously in the private‐ or public‐sector audit fee literature. We surmise that it may be caused by the dominance (79.4 percent) of non‐Big‐6 auditors in the Ontario municipal market, compared to most private‐sector audit markets where their market share generally does not exceed 20 percent. The strong market position of non‐Big‐6 firms in turn may have allowed these auditors to command a fee premium for the subset of municipalities that self‐selects to be audited by them. An implication from our study is that Ontario municipalities often choose to be audited by more costly auditors, even though they could have paid lower audit fees by switching to an alternative auditor type. These results do not support those reported by Chaney et al. (2004) , who find that U.K. private firms are audited by the least costly auditor type. The conflicting findings may be attributable to the fact that the Ontario municipal audit market is subject to regulation by not just the audit profession but also the Ontario government and that, unlike business corporations, municipalities receive funding from provincial governments to fulfil much of their financial requirements. Thus, municipal clients may be relatively more willing to accept higher audit fees provided their chosen auditor (or auditor type) matches their needs.  相似文献   

6.
The decline in population will increase dramatically after the year 2030; this development is accompanied by a dramatic change of the social structure of the German society and the aging of the population. Policyholders of annuity contracts who are now in the age of 35 will probably retire in the year 2037 and their death can be actuarially awaited near 2060. That means those people are completely affected by the development after 2030. The annuity contracts with a guaranteed interest rate (legally fixed for the duration of the contracts) dominate the new business of life insurance companies. The period of time of the interest rate guarantee can be up to 40 or 50 years. Our demographic profile leads to the assumption that in 2050 we will miss 15 million people of our working population; this represents the actual figure of the working population of Belgium, Denmark, Finland, Ireland and Austria. Consumption, overall investments and the demand of borrowed funds will decrease. The level of the rate of return of bonds or other interest bearing assets will decline. On the other hand, the value of shares of those companies who belong to the winners of the global transition process we have started right now will increase. Unfortunately life insurance companies and pension funds — when they take investment risk — are forced mainly to invest in bonds or other debentures. The consequence can be a not attractive level of return of the premiums paid. A solution would be to reinforce the development and business of non guaranteed annuities and a higher quote of shares in the portfolios. Then it would be the duty of each policyholder to protect himself by diversification  相似文献   

7.
Using enforcement actions by the Securities and Exchange Commission (SEC) as a proxy for noncompliance with securities regulations, we examine whether a firm's compliance with non‐accounting laws and regulations is associated with GAAP violations. We find that firms that violate securities regulations related to non‐accounting issues are more likely to report accounting restatements than control firms that comply with securities regulations. We also find that the difference between the two groups is significant only for the periods subsequent to the start of the noncompliance period but not for periods prior to this date. Our results highlight the interrelation between the accounting and compliance systems, and suggest that managers who are non‐compliant with non‐accounting regulations are also more likely to be non‐compliant with accounting rules.  相似文献   

8.
Companies have been so focused on down-sizing to contain costs that they've largely neglected a looming threat to their competitiveness: a severe shortage of talented workers. The general population is aging and with it, the labor pool. People are living longer, healthier lives, and the birthrate is at a historical low. During the next 15 years, 80% of the native-born workforce growth in North America--and even more in much of Western Europe--is going to be in the over-50 age cohort. When these mature workers begin to retire, there won't be nearly enough young people entering the workforce to compensate. The Bureau of Labor Statistics projects a shortfall of 10 million workers in the United States in 2010, and in countries where the birthrate is well below the population replacement level (particularly in Western Europe), the shortage will hit sooner, be more severe, and remain chronic. The problem won't just be a lack of bodies. Skills, knowledge, experience, and relationships walk out the door every time somebody retires--and they take time and money to replace. And while the brain drain is beginning now, the problem is going to become much more acute in the next decade or so, when baby boomers--more than one-quarter of all Americans, amounting to 76 million people--start hitting their mid sixties. Based on the results of their yearlong research project, the authors of this article offer recommendations for gaining the loyalty of older workers and creating a more flexible approach to retirement that allows people to continue contributing well into their sixties and seventies. Companies can no longer afford to think of retirement as a onetime event, permanently dividing work life from leisure.  相似文献   

9.
Bernard Berelson's book, "Population Policy in Developed Countries," provides a report on population policy in the developed world as of the early 1970s, covering countries with 20 million population or over, and 11 countries of special interest. There are chapters by national experts from 25 countries. A developed country is defined as industrialized, healthier, better educated, better off, more modernized, and distinguished by low fertility. This does not mean that population growth in these countries has yet fallen to zero or lower, but in 7 or 8 countries, population is expected to stabilize in a decade or so unless recent fertility trends reverse themselves or are offset by immigration. The conclusions drawn from the 25 country reports are summarized, and highlights of the demographic situation and policies in 12 of the countries are presented, Berelson is cautious in predicting the future shape of population policy in the developed world. There have been too many policy changes in the past to be confident of the future. He feels, however, that more and more people are likely to accept the goal of replacement, up to replacement in some countries and down to replacement in others.  相似文献   

10.
Recent empirical evidence suggests that investors focus more on non‐GAAP (Generally Accepted Accounting Principles) than on traditional GAAP earnings because non‐GAAP earnings are believed to proxy for a firm's ongoing profitability, a measure useful for valuation. Managers determine these non‐GAAP earnings by excluding certain items from their GAAP income. However, because these non‐GAAP earnings are both unaudited and may be disclosed by a firm to manage investors’ perceptions as opposed to inform, investors must infer the credibility of the disclosure through observable firm attributes. In this study we examine whether firms with stronger credibility attributes (corporate governance, higher‐quality auditors, and higher historical information quality) will be perceived as providing more credible non‐GAAP exclusions than those with weaker attributes. Our expectation is that the market reaction to non‐GAAP earnings exclusions of firms with stronger credibility attributes will be greater than for those with weaker attributes. Our results support our expectation.  相似文献   

11.
We use data over 25 years to understand the life cycle dynamics of VC‐ and non‐VC‐financed firms. We find successful and failed VC‐financed firms achieve larger scale but are not more profitable at exit than matched non‐VC‐financed firms. Cumulative failure rates of VC‐financed firms are lower, with the difference driven largely by lower failure rates in the initial years after receiving VC. Our results are not driven by VCs disguising failures as acquisitions or by certain types of VCs. The performance difference between VC‐ and non‐VC‐financed firms narrows in the post‐internet bubble years, but does not disappear.  相似文献   

12.
This study examines how management accountants' cognitive style combines with their role involvement to affect not only the level of effort they devote to initiating change in their management accounting practices, but also how radical those changes are. While management accountants' cognitive style is likely to be an important indicator of the level of effort devoted to initiating change, the role they occupy in the organization (described in terms of role involvement) is also likely to be important as a means through which their efforts can be facilitated. The results from a survey of management accountants indicate that cognitive style had a positive but not significant direct effect on the level of effort management accountants devote to initiating change but, as hypothesized, there was a significant indirect effect via the mediating variable of role involvement. Moreover, this indirect relationship was more significant for radical changes than non‐radical changes.  相似文献   

13.
基于中国流动人口数据,利用分层线性模型对流动人口收入的决定进行研究.结果发现:流动人口收入具有明显的分层聚类性,流动人口收入不仅与个体层次因素有关,而且还受社区层次因素的影响,但前者的作用更大;流动人口收入社区层次变异的1/3,可由社区特征变量来解释,而个体特征变量能解释个体层次变异的比例不足10%;个体特征变量对流动人口收入的影响,部分是通过社区层次因素来体现,不同层次因素之间存在互动.研究结论对于调查问卷设计的完善和流动人口收入政策的制定具有一定的参考价值.  相似文献   

14.
We examine differences in stock price, option volatility, and litigation reactions to restatement announcements that are associated with a material weakness (MW) disclosure. Contrasted with restatements that are not associated with any MW disclosure, our analyses reveal that firms that announce both a restatement and an associated MW experience significantly more negative market returns, greater implied volatility, and higher likelihood of class action lawsuits. Separating the restatements into timely reporters, where the MW precedes the restatement, and non‐timely reporters, where the MW is concurrent with or follows the restatement, we find that timely reporters experience more negative returns at the time of the restatement, relative to non‐timely reporters, suggesting that investors perceive the early MW disclosure to signal more pervasive control‐related problems. Interestingly, we find that timely and non‐timely reporters are equally likely to be sued, consistent with the argument that wrongdoing (through either a timely or non‐timely MW disclosure) provides stronger grounds for establishing scienter. However, timely reporters appear to secure more favorable litigation outcomes: they face higher likelihood of lawsuit dismissals and pay much lower settlements, compared to non‐timely reporters. Overall, our evidence provides new insights into how market participants incorporate information about internal control weaknesses into their perceptions regarding the economic implications of financial restatements, and financial reporting quality.  相似文献   

15.
Although risk and uncertainty are intrinsic to human migration, there is surprisingly little explicit research on the willingness to take risks in this context. This paper analyses whether migrants are more or less likely than non‐migrants to be risk tolerant, and whether these differences are gendered. Attitudes are explored in terms of responses under conditions of both risk and uncertainty, and self‐assessment of capabilities is also taken into account. The research is based on a sample of students who provide a relatively homogeneous group in socio‐economic terms, and relatively large numbers of individuals with experiences of temporary migration. Their attitudes to risk were assessed under experimental conditions, which measured their willingness to take risks on hypothetical gambles under different conditions. While there are some differences between males and females, and between migrants and non‐migrants, the outstanding finding is the far greater risk tolerance of female migrants as opposed to female non‐migrants, especially when compared to males.  相似文献   

16.
Credit unions are non‐profit financial organisations that provide financial services to their members. They are located in 97 countries across the world. All credit unions are governed by a volunteer board and many are reliant on volunteers for all their labour requirements. However, recruiting volunteers is a problem. The literature on recruitment issues in volunteering in general, suggests that the not‐for‐profit sector looks to the private sector for guidance on recruitment policies and approaches. One such approach which is considered in this paper is ‘market segmentation’ wherein the potential volunteer body is profiled to determine if an individual is likely to volunteer and if they are, to identify the type of role they are most likely to be attracted to. Prior literature on volunteering in non‐profit organisations suggests that certain types of individual (dominant individuals) are more likely to volunteer. This paper investigates whether this dominant status profile is evident amongst volunteers in credit unions in Northern Ireland (NI). The study finds that people with dominant characteristics are more likely to be attracted to volunteering to the board of directors and individuals who have less dominant traits overall should be offered more social/participative type roles. This information can be used by credit union governing boards for volunteer recruitment, retention and management purposes.  相似文献   

17.
The structure of income is a foremost address within research on banks’ performance, especially with regard to effects on the resilience of banks’ earnings. Indeed, given their central position in the economy, banks shall thrive to generate sustainable earnings and control for their potential volatility. Existing studies mostly consider the weight of non‐net interest income (nonNII) as opposed to the traditional NII income source. Such aggregated nonNII is found to increase earnings risk but more granular studies conflict. We propose an original investigation of the influence of economic and financial conditions on various income types, assuming that performance may actually be driven by both the income structure and external conditions. We focus European banks, which have long been allowed to diversify beyond retail banking. Out of a straight panel framework, we question if the influence of external conditions spreads to earnings components other than credit losses and trading income and if it does allow for diversification benefits among components. We find that each component actually evolves owing to its own equation. Furthermore, effects of single variables may cumulate over different components of earnings (e.g. GDP) or provide with diversification benefits. These effects are all the more important since they are not mitigated by operating expenses. Hence, over a regarded period, banks’ performance depends upon their structure of income and upon volatilities and correlations of influential variables. Besides controlling for ex‐ante volatility, our approach shows that a given structure of income is not necessarily more resilient than others but that selected non‐banking income may support a higher stability of Earnings  相似文献   

18.
We provide a unified approach to imperfect (monopolistic, Bertrand, and Cournot) competition when preferences are symmetric over a finite but endogenous number of goods. Markups depend on the Morishima elasticity of substitution and on the number of varieties. The comparative statics of free‐entry equilibria is examined, establishing the conditions for markup neutrality with respect to income, market size, and productivity. We compare endogenous and optimal market structures for several non‐CES examples. With a generalized linear direct utility, the markup can be constant and optimal under monopolistic competition, and nonmonotonic in the number of firms under Bertrand or Cournot competition.  相似文献   

19.
This study examines the wealth effect of demutualization initial public offerings (IPOs) by investigating underpricing and postconversion long‐run stock performance. Our results suggest that there is more “money left on the table” for demutualized insurers than for non‐demutualized insurers. We show that higher underpricing for demutualized firms can be explained by greater market demand, market sentiment, and the size of the offering. Further, contrary to previous research reporting an average underperformance of industrial IPOs, we show that demutualization IPOs outperform non‐IPO firms with comparable size and book‐to‐market ratios and non‐demutualized insurers. We present evidence that the outperformance in stock returns is mainly attributable to improvement in post‐demutualization operating performance and demand at the time of the IPOs. The combined results of underpricing and long‐term performance suggest that the wealth of policyholders who choose stock rather than cash or policy credits is not harmed by demutualization. Stockholders who purchase demutualized company shares either during or after the IPO have earned superior returns. Our findings are consistent with the efficiency improvement hypothesis.  相似文献   

20.
This article makes two main arguments that are intended to guide policymakers and regulators of financial markets: (1) when used properly, derivatives are enormously useful to companies in managing business risks; and (2) neither derivatives nor derivatives‐related products played significant roles in causing or exacerbating the financial crisis of 2007–2009. The author begins by illustrating the corporate use of derivatives with a detailed example of how a large brewer uses both exchange‐traded wheat futures and over‐the‐counter aluminum swaps to hedge the risks of higher wheat and aluminum prices. In the process, the value of much‐maligned OTC derivatives, and the role of financial intermediaries in facilitating their use, are clearly demonstrated. The second part of the article refutes the popular claims, widely expressed in the media and on Capitol Hill, that derivatives were at the heart of the financial crisis. Losses and failures during the crisis are shown to have resulted primarily from excessive non‐derivative leverage and from investments in non‐derivative mortgage products that fell dramatically in value. The only significant exception involved the insurance company AIG, whose failure and bailout are attributable not only to large losses on credit default swaps, but to comparable losses on non‐derivative mortgage products. Moreover, by the time AIG failed, many other large financial institutions had already either failed or experienced large losses. What's more, and all but forgotten during the controversy, some large banks were able to reduce risk by hedging with those derivatives.  相似文献   

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