环境友好 服务首都——创建国家环境友好企业纪实

2005年10月20日,经过国家环境保护总局的验收和公示,中电国华电力股份有限公司北京热电分公司,被正式授予“国家环境友好企业”称号,这是全国电力系统第一家获得此项荣誉的企业。     

Constructing meaning in the service of power: An analysis of the typical modes of ideology in accounting textbooks

This paper provides an analysis of the typical modes of ideology in introductory financial accounting textbooks and training materials. Drawing on Thompson's [Thompson JB. Ideology and modern culture: critical social theory in the era of mass communication. Cambridge: Polity Press; 1990] schema concerning the typical linguistic modes through which ideology operates, this research suggests that the operation of ideology is apparent within educational accounting texts, with particular strategies being more evident than others: in particular, the strategies of universalization, narrativization, rationalization and naturalization. Given the predominantly technical nature of introductory financial accounting textbooks and training manuals, the modes of ideology identified in the texts were often quite subtle; more specifically, the ideological characteristics displayed in each of the six texts analyzed were often expressions of implicit or taken for granted assumptions.     

The Stock Market Reaction to Investment Announcements: The Case of Individual Capital Expenditure Projects

In this paper we provide novel evidence about the market reaction to capital expenditure announcements in the UK using a sample of nearly 500 disclosures made between 1989 and 1991. First, we show that the market reaction to joint venture announcements is significantly positive, whilst similar announcements from individual companies do not elicit any response. Second, we find that the market reaction to single company investments is positively related to the size of the expenditure, but only for projects which immediately generate cash. Finally, we report that the variability in the market response to announcements which follow large cash inflows is significantly lower than the variability in investors' reactions to announcements which are not preceded by such inflows.     

An analysis of trading strategies in eleven European stock markets

Abstract

In recent years, the validity of the weak form efficient market hypothesis (EMH) has been called into question as several studies have uncovered evidence that technical trading rules have predictive ability with respect to both developed and emerging stock market indices. This study analyses the forecasting power of 2 of the most popular trading rules using index data for a selection of 11 European stock markets over the January 1991 to December 2000 period. The findings indicate that the emerging markets included in this paper are informationally inefficient; these markets displayed some degree of predictability in their share returns, although the developed markets did not. Furthermore, the results point to large differences in the performance of the rules examined; while small size filters consistently outperformed the buy-and-hold strategy in the emerging markets examined even after the consideration of transaction costs, the performance of the moving average rules was erratic and varied dramatically from market to market.     

Insider trading,growth opportunities and the market reaction to new financing announcements*

Abstract

This paper explores the profitability of momentum strategies, by investigating if a momentum strategy is superior to a benchmark model once the effects of data-snooping have been accounted for. Two data sets are considered. The first set of data consists of US stocks and the second one consists of Swedish stocks. For the US data strong evidence is found of a momentum effect and hence the hypothesis of weak market efficiency is rejected. Splitting the sample in two parts, it is found that the overall significance is driven by events in the earlier part of the sample. The results for the Swedish data indicate that momentum strategies based on individual stocks generate significant profits. A very weak or no momentum effect can be found when stocks are sorted into portfolios. Finally, and perhaps most importantly, results show that data-snooping bias can be very substantial. Neglecting the problem would lead to very different conclusions.     

What explains long memory in futures price volatility?

Long memory in futures price volatility is a well-documented stylized fact with implications for market efficiency, risk management, forecasting and option pricing bias. The implications of long-memory differ, however, based on whether it is of a ‘fractional’ or of a ‘stochastic’ type. The aims of this article are to determine, in the case of agricultural commodity futures data, which type better describes price volatility and also to evaluate several competing explanations for findings of long memory. The evidence presented here finds little support for three out of four potential explanations, namely, excessive noise in the volatility measure, bias in the long-memory estimator and understated SEs of the long-memory parameter. For the data considered, price volatility appears to be most likely generated by a nonfractional long-memory process such as a stochastic break or stochastic unit root.     

Market volatility and the dynamic hedging of multi-commodity price risk

Commodity cash and futures prices experienced a severe boom-and-bust cycle between 2006 and 2009. Increases in commodity price volatility have raised concerns about the usefulness of commodity futures and options as risk management tools. Dynamic hedging strategies have the potential to improve risk management when conditional (co)variances depart significantly from their unconditional, long-run counterparts and may be useful to decision-makers despite their greater complexity and higher transaction costs. We propose a Nonparametric Copula-based Generalized Autoregressive Conditional Heteroscedastic (NPC-GARCH) approach to estimate time-varying hedge ratios, and evaluate the benefits of dynamic hedging during four sub-periods between 2000 and 2011 using a stylized Texas cattle feedlot management problem. The NPC-GARCH approach allows for a flexible, nonlinear and asymmetric dependence structure between cash and futures prices for different commodities. We find that NPC-GARCH dynamic hedging performs better than either static, GARCH-Dynamic Conditional Correlation (DCC) or GARCH-Baba, Engle, Kraft and Kroner (BEKK) hedging in terms of lower tail risk (expected shortfall), but that there is no significant difference between hedging approaches in terms of portfolio variance reduction.     

Accounting textbooks: Exploring the production of a cultural and political artifact

This paper explores the production of introductory financial accounting textbooks in the UK. Despite being a pervasive pedagogical device (see Brown and Guilding, 1993, Accounting Education: an international journal, 4(2) pp. 211–218), there has been little research carried out which examines the role or contents of textbooks in accounting education. This is a surprising gap in the literature when one considers the numerous concerns that have been expressed regarding the content of accounting education, the values which it projects and the type of student which it produces. Drawing on contemporary research into textbooks, this paper considers accounting textbooks to be ‘cultural artifacts’ which may reflect the cultural, ideological, and political interests of particular groups in society. In this regard, introductory financial textbooks have the potential to reinforce cultural homogeneity through the advancement of shared attitudes. This study is based upon 12 semi-structured interviews with both textbook authors and commissioning editors. Results indicate that the contents of textbooks are the product of complex social and cultural relations. Whilst conflicts and negotiations may characterize the production process, the knowledge that is considered most ‘legitimate’ tends to be mandated, either directly or indirectly, by professional accounting bodies through course accreditation requirements. Furthermore, this knowledge reflects wider cultural issues and assumptions regarding the structure of society and of how it should be organized.     

中电投：电站检修市场化

电站检修市场化运营进程中，要充分借鉴国际先进企业的成就经验和管理方法，通过引入市场机制，整合资源，全面提升发电、检修抵御风险的能力     

The temporal nature of legitimation: the case of IFRS8

Legitimation can operate on an episodic or continual basis [Suchman, M.C. (1995). Managing legitimacy: Strategic and institutional approaches. Academy of Management Review, 20(3), 571–610]. We examine the temporal legitimation of the International Accounting Standards Board (IASB)’s actions during the adoption and review of International Financial Reporting Standard (IFRS) 8 ‘Operating Segments’. We conceptualise the controversy surrounding IFRS8 as an episode when the IASB sought segmental reporting convergence with the US standard, Statement of Financial Accounting Standard 131. Interpreting evidence from 15 (20) semi-structured interviews undertaken in 2009 (2011), before (after) entities reported under IFRS8, reveals its adoption precipitated an episodic legitimacy threat from selected audiences to the actions of the IASB. We discuss the IASB's attempt to influence legitimation for this episode through commitment to a post-implementation review [IFRS Foundation. (2011). Post implementation reviews: Plan for developing the framework for conducting post-implementation reviews. IASB Board meeting February 2011. Retrieved July 27, 2011, from http://www.ifrs.org/NR/rdonlyres/3E1502E4-F1E8-4907-838B-FFB20C7268ED/0/PIR02111st2ndb04obs.pdf] of IFRS8. Interpreting legitimacy concerns across diverse audiences about specific actions of the IASB (the introduction of IFRS8) enables us to draw conclusions about the resilience of the IASB as a standard setting organisation, in itself.