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1.
Information sharing among firms and cyber attacks   总被引:2,自引:0,他引:2  
As the Sarbanes-Oxley Act strengthens internal controls, and the government encourages information sharing, accounting gains significance through secure representation, storage, and transfer of information, and by laying the foundation for assessing costs and benefits. Information sharing and security investment for two firms are inverse U shaped in the aggregate attack, and interlinked through the interdependence and the firm’s unit cost of security investment. Both increase in the interdependence (e.g. US telecommunications industry). With given security investment, social welfare is inverse U shaped in information sharing. Individual optimization implies free riding. A social planner is introduced controlling information sharing, security investment, or both, in simultaneous and two period games. Two period games where the social planner moves first are realistic when the social planner is highly respected. For the simultaneous game, a social planner controlling information sharing (security investment) imposes unreasonably high sharing (security investment). Firms free ride in the variable they control. The social planner imposes more moderate levels in the two period games. A social planner controlling both information sharing and security investment in a two period game where the social planner moves first is the most beneficial control scenario when the firms’ defense efficiencies are high. If these are sufficiently high, the attack is deterred altogether.  相似文献   

2.
Level II and III ADRs permit issuers to be listed on the major U.S. exchanges with the stipulation that they comply with extensive SEC disclosure requirements. Foreign private issuers are compelled to file a set of audited financial statements prepared in accordance with U.S. GAAP, or alternatively, IFRS or Home Country Accounting Principles with attendant reconciliation to U.S. GAAP prior to 2008. Although the Form 20-F reconciliation is discontinued in 2008 for IFRS filers, non-U.S. issuers are required to satisfy other Form 20-F stipulations such as expanded Item 17 and Item 18 disclosures. We conjecture that non-U.S. firms choosing to be listed on the major U.S. exchanges will incur the added costs associated with the supplemental disclosure requirements in order to attract sufficient investor attention as to have the disclosures impounded in the home country equity share price in the manner described by Fishman et al. (1989). Because a prominent attribute of ADR firms is that they benefit from multiple-market trading, we investigate whether the Form 20-F disclosure cross-market information transfers are associated with emerging market economy status. We employ models of the cross-market ADR and equity security share returns and trading volume controlling for the emerging economy status and incremental firm-specific SEC Form 20-F accounting principles disclosures. Preliminary results indicate that (1) U.S. listed ADR firms from emerging economies experience greater cross-market information transfers associated with the SEC Form 20-F filing, and (2) that the increased cross-market information transfers associated with the SEC Form 20-F filing are proportional to the difference in quality of accounting principles employed for home country reporting purposes vis-à-vis the accounting principles employed for SEC Form 20-F reporting purposes. Results are consistent with a feedback process through which the new information disclosed by the SEC Form 20-F reporting requirements in the ADR market attenuates the price discovery process in the home country equity market when the difference in information environment quality is large.  相似文献   

3.
We examine whether investors' attention on salient firm characteristics affects information spillovers during corporate earnings announcements. For market participants in China, the stock name is a salient feature of listed companies. We find that the market reaction of non-announcing firms to earnings reports of announcing firms is greater across firms with similar stock names. The incremental information spillovers among similarly named stocks are stronger for larger announcing firms and on days with fewer earnings announcements. The incremental information spillovers between similarly named stocks do not fully reverse in the post-announcement period, consistent with persistent investor behavior predicted by the salience theory. There are also significant return comovements among similarly named stocks. Our findings suggest that investors with limited attention are likely to focus on salient stock names and overestimate the economic connections between similarly name stocks. Our study extends the behavioral finance literature by showing how investors' attention on salient firm features can bias their reaction to unrelated peer disclosures.  相似文献   

4.
We examine a sample of 254 related party and arms’ length acquisitions and sales of assets in Hong Kong during 1998–2000. Our analysis shows that publicly listed firms enter deals with related parties at unfavourable prices compared to similar arms’ length deals. Firms acquire assets from related parties by paying a higher price compared to similar arms’ length deals. In contrast, when they sell assets to related parties, they receive a lower price than in similar arms’ length deals. With the exception of audit committees, corporate governance characteristics have limited impact on transaction prices. Firms with audit committees on their boards pay lower prices to related parties for acquisitions and receive higher prices from related parties from divestments.  相似文献   

5.
The ultimate goal of antitrust enforcement is to maximize the surplus consumers enjoy by enhancing production efficiency and eliminating market power. Previous literature focuses on the average net wealth effects on merging firms and their stakeholder firms and reports evidence of efficiency gains while no evidence of market power in horizontal mergers. In this paper, we examine how efficiency gains distribute between the merging firms and their customer firms. We find a significant negative relation between the combined abnormal returns on the merging firms and those on their customer firms, demonstrating a wealth transfer effect. Such a negative relation is more pronounced when market power is likely to be more intensive. On average, the merging firms gain, and their customers do not lose. Our results suggest that market power allows merging firms to withhold merger gains that would have been passed to the downstream under perfect competition and prevents customers from enjoying the whole consumer surplus. Distributive inefficiency exists in horizontal mergers.  相似文献   

6.
1996年中国注册会计师协会和中国注册审计师协会联合以来,可从事独立审计业务的事务所数量急剧增加.但受国企改革尚未取得突破性进展和国内有效需求不足等综合因素影响,大部分省份注册会计师服务市场的需求增长远远低干供给增长.  相似文献   

7.
年复一年,不同凡响.如果说几年前的脱钩改制是会计师事务所的一次重大转折,那么2000年我们又面临了一场新的考验,引发了更加深刻的思想观念转变和管理模式重大调整.  相似文献   

8.
We develop a measure to capture an audit firm's competitive position in a local audit market based on the transaction costs of changing audit firms included in DeAngelo's (1981) multi-period audit pricing model. Our competition measure reflects the size difference between the largest audit firm in a market specified by client industry at the city level and the other audit firms operating in that market. We find that audit fees of a client decrease as this size difference increases. This result suggests that smaller audit firms charge lower audit fees because of their competitive disadvantage to the local largest firm.  相似文献   

9.
10.
We focus on the relations among inside ownership, board composition, unaffiliated block ownership, and compensation structure for a sample of firms following their IPOs. Specifically, we follow firms for up to eleven years after their IPOs and examine the full sample and subsamples of firms that survive, are acquired, or that file for bankruptcy during the sample period. We find that as CEO ownership declines, board independence, board seats held by venture capitalists, and unaffiliated block ownership increase. Our findings suggest that as inside ownership decreases alternative governance mechanisms evolve to help mitigate the resulting increase in agency costs. Interestingly, the associations between CEO ownership, the fraction of venture capital board membership, and unaffiliated block ownership exist only for firms that survive over the eleven-year sample period.  相似文献   

11.
We show how profit sharing by firms with workers facilitates collusion among firms in a dynamic oligopoly environment with uncertain demand. We first show that firm profits can always be increased by tying wages to market conditions. The optimal agreement takes the form of an option and features partial sharing because increased sharing raises the expected price‐wage differential, but reduces price‐wage variability. We then show that given any cartel, there exist market conditions such that simply giving some expected profit to workers raises expected firm profits via the transfer's impact on the incentive to cheat on the cartel.  相似文献   

12.
This study examines the information environment and earnings management of dual class firms. Motivated by the pronounced entrenchment phenomenon at dual class firms due to divergence between voting and cash flow rights, we are interested in whether dual class firms adopt corporate disclosure choices that imply greater opacity as well as employ judgment in financing reporting to misguide the outside shareholders about the firm’s true performance. Based on a sample of 12,672 firms from 19 countries during 1994–2010, we find that dual class status is associated with poorer information environment and increased accrual-based earnings management, consistent with the notion that managers of dual class firms exhibit incentives to conceal private control benefits from the outside shareholders. Results further suggest that dual class ownership structure weakens the mitigating impact of investor protection on earnings management. Following unification, firms experience an improvement in information environment and a decrease in earnings manipulation.  相似文献   

13.
This paper considers the role of analyst following in coordinating mutually beneficial disclosure among competing firms. Though firms may benefit from industry-wide transparency, the urge to keep a competitive edge by withholding disclosures can be compelling. In such a case, the desire to attract analyst following can make a policy of joint disclosure viable. Knowing that keeping silent can deter analysts, no firm has incentives to unilaterally withhold disclosures. Further, coordinated disclosures can benefit firms and consumers alike by yielding circumstance-specific product offerings.  相似文献   

14.
This study examines information transfer regarding how investors react to new foreign macroeconomic and industry-related information embedded in foreign firms' earnings releases. Using non-U.S. firms listed in the U.S. as our main setting, we find that U.S. investors react significantly to foreign macroeconomic information and to information generated by the interaction between macroeconomic and industry-related information. We also find that the benefits (costs) of processing earnings reports increase (decrease) both types of information transfers. In addition, we find macroeconomic information transfers in an international cross-listing setting and both types of information transfers in an international non-cross-listing setting.  相似文献   

15.
A substantial literature addresses the design of transfer programs and policies, including the negative income tax, other means-tested transfers, the earned income tax credit, categorical assistance, and work inducements. This work is largely independent of that on the optimal nonlinear income tax, yet formulations of such a tax necessarily address how low-income individuals should be treated. This paper draws on the optimal income taxation literature to illuminate the analysis of transfer programs, including the level and shape of marginal tax rates (including phase-outs), the structure of categorical assistance, and the role of work inducements in an optimal income transfer scheme. JEL Classification H21 · H53 · I38  相似文献   

16.
Growth of division of labour among building-related firms in Bristol between 1850 and 1939 was virtually continuous, with fastest growth between c. 1900 and 1920. By contrast, the onset and subsequent retardation of accelerated growth in London occurred earlier. Probable influences favouring growth were the extent of the market, falling transaction costs and, particularly, technical innovation and diffusion, apparently associated with recession in total building activity. Innovations were a strong source of division of labour in the fields of building component and materials processing, and the installation of building services.  相似文献   

17.
We document significant increases in short positions on days when company insiders sell their firms’ shares. Short selling increases before insider sales are publicly reported and often before insiders finish selling. Furthermore, the magnitude of short selling activity is consistent with short sellers’ knowledge of the insider’s rank (e.g., CEO, CFO, or a lower-ranked manager) and with knowledge of the unobservable size of the insider’s trading position. We show that short sellers’ superior timing is consistent with (i) monitoring of order flow and (ii) obtaining price-relevant information from brokerages that execute insider sales. Some of our results extend to insider purchases.  相似文献   

18.
We exploit a novel setting in which the same piece of information affects two sets of firms: one set of firms requires straightforward processing to update prices, while the other set requires more complicated analyses to incorporate the same piece of information into prices. We document substantial return predictability from the set of easy-to-analyze firms to their more complicated peers. Specifically, a simple portfolio strategy that takes advantage of this straightforward vs. complicated information processing classification yields returns of 118 basis points per month before transaction costs. Consistent with processing complexity driving the return relation, we further show that the more complicated the firm, the more pronounced the return predictability. In addition, we find that sell-side analysts are subject to these same information processing constraints, as their forecast revisions of easy-to-analyze firms predict their future revisions of more complicated firms.  相似文献   

19.
Johnson et al. (2002. American Economic Review 92 (5), 1335–1356) examine the relative importance of property rights and external finance in several Eastern European countries. They find property rights to be overwhelmingly important, while external finance explains little of firm reinvestment. McMillan and Woodruff (2002. Journal of Economic Perspectives 16 (3), 153–170) further conjecture that as transition moves along, market-supporting (financial) institutions should become more important. This paper reexamines those issues in the context of China in 2002, when the transition had moved far. We also find that secure property rights are a significant predictor of firm reinvestment. However, in line with McMillan and Woodruff, we find that access to external finance in the form of bank loans is also associated with more reinvestment. Following Acemoglu and Johnson (2003. Unbundling institutions. Unpublished working paper 9934, National Bureau of Economic Research, Cambridge, MA), we separate our proxies for the security of property rights into two groups: those measuring the risk of expropriation by the government and those measuring the ease and reliability of contract enforcement. Whereas those authors’ cross-country results suggest that risk of expropriation is the more severe impediment to economic development, ours indicate that both expropriation risk and contract enforcement play a role in Chinese firms’ reinvestment decisions. We also find that another aspect of property rights, the extent of private ownership, is associated with greater reinvestment. At China's current stage of development, expropriation risk, contract enforcement, access to finance, and ownership structure all appear to matter for reinvestment decisions. Some evidence also exists that access to finance and government expropriation affect small firms more than large ones.  相似文献   

20.
We investigate the pre-Euro exposure to exchange rate changes of large firms in the UK, France and Germany. We find that the exchange rate sensitivity is considerably stronger than previously thought. In all three countries, firms typically gain value when their local currency depreciates against the US dollar, yet most UK firms lose value when sterling depreciates against the European currency unit. We also document the existence of an intriguing intervalling effect in the measurement of exchange rate exposure, which suggests that share prices might exhibit a delayed response to information, and prevents us from making robust generalizations concerning other exchange rate sensitivities.  相似文献   

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