Asymmetric mean-reversion and contrarian profits: ANST-GARCH approach

This paper investigates the time-series evidence of asymmetric reverting patterns in stock returns that is attributable to “contrarian profitability.” Using asymmetric nonlinear smooth-transition (ANST) GARCH(M) models, we find that, for monthly excess returns of US market indexes over the period of 1926:01–1997:12, negative returns on average reverted more quickly, with a greater reverting magnitude, to positive returns than positive returns revert to negative returns. The results are quite consistent when the models are implemented not only for the different sample periods, such as 1926:01–1987:09 and 1947:01–1997:12, but also for portfolios with different characteristics, such as different firm-size portfolios and Fama–French risk-adjusted factor portfolios. We interpret the asymmetrical reversion as evidence of stock market overreaction.     

The effect of market segmentation on stock prices: The China syndrome

China has an A-share market that is open only to local investors and a B-share market that is open only to foreign investors. Contrary to what has been observed in other markets with a similar segmented structure, the China B shares trade at a discount relative to the A shares. We show that the phenomenon can still be explained by basic economic principles. Specifically, the existence of the H-share and the “red-chip” markets in Hong Kong provide good substitutes for the B-share market. We find that when more H shares and red chips are listed in Hong Kong, the B-share discount becomes larger. This is consistent with the model of differential demand elasticity proposed by Stulz and Wasserfallen (Stulz, R., Wasserfallen, W., 1995. Review of Financial Studies 8, 1019–1057).     

Long memory options: LM evidence and simulations

This paper demonstrates the impact of the observed financial market persistence or long term memory on European option valuation by simple simulation. Many empirical researchers have observed the non-Fickian degrees of persistence in the financial markets different from the Fickian neutral independence (i.i.d.) of the returns innovations assumption of Black–Scholes’ geometric Brownian motion assumption. Moreover, Elliott and van der Hoek [Elliott, R.J., van der Hoek, J., 2003. A general fractional white noise theory and applications to finance. Math. Finance 13, 301–330] provide a theoretical framework for incorporating these findings into the Black–Scholes risk-neutral valuation framework. This paper provides the first graphical demonstration why and how such long term memory phenomena change European option values and provides thereby a basis for informed long term memory arbitrage. By using a simple mono-fractal fractional Brownian motion, it is easy to incorporate the various degrees of persistence into the Black–Scholes pricing formula. Long memory options are of considerable importance in corporate remuneration packages, since stock options are written on a company’s own shares for long expiration periods. It makes a significant difference in the valuation when an option is “blue” or when it is “red.” For a proper valuation of such stock options, the degrees of persistence of the companies’ share markets must be precisely measured and properly incorporated in the warrant valuation, otherwise substantial pricing errors may result.     

The accounting of “The Meeting”: Examining calculability within a “Fluid” local space

This study traces events in an empirical setting where a key local space, “The Meeting”, was made calculable. Building on field data from interviews and documentary sources at ABB Industry/Finland, the study theorizes in the interpretive genre, elaborating on the notion of the calculable space. It argues the following: Accounting can be extended into un-formalized and more elusive local spaces – into “fluid” spaces which are not clearly mapped within the organizational hierarchy, and which lie beyond recognized responsibility units or physically distinct cells at the factory floor. By opening visibility into the discretion of these “fluid” local spaces, a tighter alignment between programmatic ideals and real action at the organizational grass-root can be achieved. Self-devised non-financial measurement, mediating local tensions and the interests of “autonomous” actors, becomes the technology of government in this process of normalization – which is, however, not to be acknowledged as being unproblematic.     

Auditors’ decision-making under going-concern uncertainties in low litigation-risk environments: Evidence from Hong Kong

This study examines the audit opinions issued by auditors in a low litigation-risk environment at a time of high economic uncertainty – that of Hong Kong in the period immediately after the Asian financial crisis of 1997. Empirical research using United States data has shown that, contrary to professional guidance which restricts the issue of “disclaimer of opinion” only to situations where existing uncertainties prevent the auditor from forming an opinion, auditors tend to use the “disclaimer” report (in the going concern context) to signal more extreme client firm’s distress. In the high litigation-risk environment of the US, researchers have attributed this tendency to the idea that “disclaimer of opinion” reports are used by auditors to provide some protection against potential legal liability. The results of this study provide evidence that, even in the low litigation-risk environment of Hong Kong, auditors still use “disclaimer” reports to signal more extreme client firm financial distress. Thus, the maintenance of a high litigation-risk environment does not appear to be a necessary pre-requisite for high quality audits.     

Coexistence of disposition investors and momentum traders in stock markets: experimental evidence

Prior research documents that many investors disproportionately hold on to losing stocks while selling stocks which have gained in value. This systematic behavior is labeled as the “disposition effect”. The phenomenon can be explained by prospect theory's idea that subjects value gains and losses relative to a reference point like the purchase price (PP), and that they are risk-seeking in the domain of possible losses and risk-averse when a certain gain is obtainable. Our experiments were designed to test whether individual-level disposition effects attenuate or survive in a dynamic market setting. We analyze a series of 36 stock markets with 490 subjects. The majority of our investors demonstrate a strong preference for realizing winners (paper gains) rather than losers (paper losses). We adopt different reference points and compare the behavioral patterns across three main trading mechanisms, i.e. rules of price formation. The disposition effect is greatly reduced only within high-pressure mechanisms like a dealer market (DM) when the last price (LP) is assumed as a reference point, which is a more market driven (external) benchmark. If disposition investors use the PP as a reference point, which is a more mental-accounting driven (internal) benchmark, they die hard in all market settings. Interestingly, our markets do not collapse or become illiquid by disposition investors' reluctance to trade. A main reason for this is the coexistence of two or more groups of investors, e.g. momentum traders and disposition investors.     

The behavior of money and other economic variables: Two natural experiments

The object of this paper is to test the performance of the quantity-theory model and the related proposition of monetary neutrality in a context in which, to use Bernanke's phraseology, “money move[d] for reasons that [were] plausibly unrelated to the current state of the economy.” We investigate this question using data from two recent episodes of monetary-policy regime change – the move to floating exchange rates throughout the industrialized world following the breakdown of Bretton Woods in the early 1970s and the shift toward less expansive monetary policy that to varying degrees took place in these countries a decade or so later. The results of this exercise are highly positive. The money–price relationship that we observe is fully consistent with theory – growth shifts in the nominal stock of money and in the price level are highly correlated and bear a one-to-one relation to one another. Growth shifts in exchange rates are significantly related both to growth shifts in relative price levels and to growth shifts in relative excess supplies of money. The classical neutrality proposition – in this context superneutrality – in general, receives strong, though not totally unambiguous, support.     

Extreme observations and risk assessment in the equity markets of MENA region: Tail measures and Value-at-Risk

The standard “delta-normal” Value-at-Risk methodology requires that the underlying returns generating distribution for the security in question is normally distributed, with moments which can be estimated using historical data and are time-invariant. However, the stylized fact that returns are fat-tailed is likely to lead to under-prediction of both the size of extreme market movements and the frequency with which they occur. In this paper, we use the extreme value theory to analyze four emerging markets belonging to the MENA region (Egypt, Jordan, Morocco, and Turkey). We focus on the tails of the unconditional distribution of returns in each market and provide estimates of their tail index behavior. In the process, we find that the returns have significantly fatter tails than the normal distribution and therefore introduce the extreme value theory. We then estimate the maximum daily loss by computing the Value-at-Risk (VaR) in each market. Consistent with the results from other developing countries [see Gencay, R. and Selcuk, F., (2004). Extreme value theory and Value-at-Risk: relative performance in emerging markets. International Journal of Forecasting, 20, 287–303; Mendes, B., (2000). Computing robust risk measures in emerging equity markets using extreme value theory. Emerging Markets Quarterly, 4, 25–41; Silva, A. and Mendes, B., (2003). Value-at-Risk and extreme returns in Asian stock markets. International Journal of Business, 8, 17–40], generally, we find that the VaR estimates based on the tail index are higher than those based on a normal distribution for all markets, and therefore a proper risk assessment should not neglect the tail behavior in these markets, since that may lead to an improper evaluation of market risk. Our results should be useful to investors, bankers, and fund managers, whose success depends on the ability to forecast stock price movements in these markets and therefore build their portfolios based on these forecasts.     

Corporate restructuring in Japan: Who monitors the monitor?

Peek and Rosengren [Peek, J., Rosengren, E., 2005. Unnatural selection: Perverse incentives and the misallocation of credit in Japan. American Economic Review 95, 1144–1166] showed that, when the bubble economy era ended, regulatory forbearance and perverse incentives allowed Japanese banks to engage extensively in evergreening. This is the first comprehensive study to empirically analyze the economics of private debt restructurings of financially distressed companies in Japan, where the corporate monitoring mechanism is not market based but large-stakeholder based – typically, banks and affiliated companies. These stakeholders are expected to efficiently resolve potential bankruptcy or collapse with better information resulting from long-term relationships with the distressed firms. Our study, however, finds that private restructurings led by them failed because of delays in implementing fundamental solutions. Forbearance in addressing the needs of distressed firms demonstrates the weakness of such stakeholders in instituting discipline, hence the need for a system to “monitor the monitor”.     

Professional accounting development in Nigeria: threats from the inside and outside

Over the years several, sometimes conflicting, theories attempting to explain the development of professions have emerged. The “functionalist” and “interactionist” theories have since lost the spotlight to a more critical approach based on the Weberian concept of closure. Limitations in the concept and practice of this neo-Weberain concept have led to suggestions that research into the sociology of professions, should also include historical analyses of professionalism that capture historical specificities with the aim of generating theory that sees beyond “just massive historical variation” [Collins, R. (1990). Changing conceptions in the sociology of the profession. In R. Torstendahl, & M. Burrage, The formation of professions: Knowledge, state and strategy. London: Sage Publications]. Such research should also investigate the structural conditions under which the professionalisation process takes place [Johnson, T. (1977). The profession in the class structure. In R. Scase, Industrial society: Class, cleavage and control. London: George Allen and Unwin.]. In order to achieve this, there is the need to critically study the relationship of the State and the profession [Klegon, D. (1978). The sociology of professions: an emerging perspective. Sociology of Work and Occupations, 5, 3, 259–283.] and to document more extensively, the process, rather than the product, of closure [Chua, W. F., & Paullaos, C. (1993). Rethinking the profession-state dynamic: the case of the Victorian Charter Attempt, 1885–1906, Accounting, Organizations and Society, pp. 128–691; Chua, W. F., & Paullaos, C. (1998). The dynamics of “closure” amidst the construction of market, profession, empire and nationhood: an historical analysis of an Australian Accounting Association. Accounting, Organizations and Society, 23 (2), 155–187; Ramirez, C. (2001). Understanding social closure in its cultural context: accounting practitioners in France (1920–1939), Accounting, Organizations and Society.]. Such is the approach of this article, which focuses on the development of the accounting professions in Nigeria. It critically examines the profession/ State dynamics that have helped shape the outcome of the various episodes in the history of the accounting profession in Nigeria. An important influence in this dynamics is the nature of government in place (i.e. military or civilian).     

Dispersion trading: Empirical evidence from U.S. options markets

This paper develops empirical evidence on the viability of a form of volatility trading known as “dispersion trading.” The results shed light on the efficiency with which U.S. options markets price volatility.Using end-of-day implied volatilities extracted from equity option prices for the stocks that comprise the S&P 500, the implied volatility of the S&P 500 is computed using a modification of the Markowitz variance equation. This Markowitz-implied volatility is then compared to the implied volatility of the S&P 500 extracted directly from index options on the S&P 500. These contemporaneous measures of implied volatility are then examined for exploitable discrepancies both with and without transaction costs. The study covers the period October 31, 2005 through November 1, 2007.It is shown that, from a trader's perspective, index option implied volatility tended to be more often “rich” and component volatilities tended to be more often “cheap.” Nevertheless, there were times when the opposite was true; suggesting that potential dispersion trades can run in either direction.     

A writing intervention for the accounting classroom: dealing with the problem of faulty modifiers

Good communication skills continue to be viewed as critical for success in accounting. This paper demonstrates a writing-skills “intervention” that deals with faulty modifiers, a grammatical problem that can inhibit accounting students and professionals from achieving the clarity and conciseness widely regarded as essential in the accounting profession. The intervention consists of a handout distributed to students – fashioned to sensitize them to the pervasiveness of faulty modifiers and help them avoid the problem – and an in-class discussion of the handout. By design, this intervention is both inexpensive and unobtrusive. For the accounting instructor, we provide in the body of the paper a technical, but unpedantic and informal, analysis of faulty modifiers, including numerous examples of the problem, accompanied by alternative corrections. To date, few papers in the accounting education literature that deal with writing problems present direct assessment evidence. To assess the efficacy and perceived value of our learning intervention, we collected assessment data – both direct (i.e., a set of three diagnostic tests) and indirect (i.e., feedback from a student questionnaire) from two institutions at which our learning intervention was tested. These data suggest than an intervention of the sort described here can be valuable in remedying discrete weaknesses of student writing. In a larger sense, we believe our paper can be used as a model for the development of similar “interventions” that cover other grammatical problems, and that can serve either as stand-alone entities (similar to the method proposed by Reinstein and Houston (2004) [Using the Securities and Exchange Commission’s “plain English” guidelines to improve accounting students’ writing skills. Journal of Accounting Education, 22, 53–67]) or as complementary resources to more comprehensive and formal writing programs.     

Insider ownership and corporate performance: Evidence from the adjustment cost approach

This paper examines the relation between insider ownership and corporate performance in the presence of adjustment costs and investigates how the adjustment costs are determined. In a model specification without adjustment costs, we find that insider ownership is significantly positively associated with corporate performance. But once we allow for adjustment costs, the relationship no longer exists. We find that insider ownership and corporate performance can be explained by their respective lagged values and that many firm characteristics that were previously useful in explaining these two variables turn out to be statistically insignificant. In addition, there is no evidence that insider ownership and corporate performance affect each other. This is consistent with the adjustment cost argument. It is also consistent with the “endogeneity” argument suggested by Demsetz [Demsetz, H. 1983. The structure of ownership and the theory of the firm. Journal of Law and Economics 26, 375–390.], Demsetz and Lehn [Demsetz, H., Lehn, K., 1985. The structure of corporate ownership: causes and consequences. Journal of Political Economy 93, 1155–1177.], and Demsetz and Villalonga [Demsetz, H., Villalonga, B., 2001. The ownership structure and corporate performance. Journal of Corporate Finance 7, 209–233.]. Finally, we document that the speed of adjustment of insider ownership is positively related to insiders' market timing but negatively to the number of insiders and that the speed of adjustment of Tobin's Q is positively associated with financial leverage and stock price volatility.     

Men, children and the future of the family in the third millennium

This paper examines the effects of demographic change on the foundations of the family. The “first” demographic transition — the massive declines in fertility and mortality — is shown to have undermined the traditional male–female relationship based on parenthood. This has led to the gender revolution in the public sphere. The “second” demographic transition — the increases in divorce and cohabitation — is shown to have undermined the father–child relationship, reflecting women's control over children, a control that increased continually during the first demographic transition. This paper argues that the gender revolution needs to be brought into the family, increasing women's ability to compete in employment and men's ability both to choose whether to assume parental responsibility and to maintain active parental roles with their children.     

Does bank capital affect lending behavior?

This paper investigates the existence of cross-sectional differences in the response of lending to monetary policy and GDP shocks owing to differences in bank capitalization. It adds to the literature by using the excess capital-to-asset ratio, which can better control the riskiness of banks' portfolios, and by disentangling the effects of the “bank lending channel” from those of the “bank capital channel.” The results, based on a sample of Italian banks, indicate that bank capital matters in the propagation of different types of shocks to lending, owing to the existence of regulatory capital constraints and imperfections in the market for bank fund-raising.     

Cournot model of brokered FX trading

This paper develops a Cournot model of rival dealers placing limit orders with a broker, who in turn makes a market by acting as a liaison between dealers. The broker's limit-book lists the various prices and quantities at which dealers are willing to exchange currency vis-à-vis electronic broking. The size and volatility of the inside spread is simulated relative to dealer entry–exit and the price elasticity of linear order arrival functions. Our simulations reveal non-linear price dynamics from dealer participation in market development, with an additional rival narrowing the inside spread by 1.82% while diminishing its volatility. These findings may shed some light on the “excess volatility puzzle” raised by Killeen, Lyons and Moore (forthcoming) as to why price behavior under flexible exchange rate regimes is significantly more volatile than macro fundamentals would suggest.     

Monetized medicine: from the physical to the fiscal

This paper explores professional rivalries as one force driving market-driven healthcare. Extending their jurisdiction beyond industrial settings, industrial engineers calibrated the physician's labor against fiscal metrics by devising product lines for hospitals. These products––diagnostic related groups (DRGs)––were not, however, intended as commodities. Economists, in contrast, proffered theoretical arguments justifying why medical care was best provided using market-like mechanisms. They assumed care as a commodity. The passage of the law mandating prospective Medicare payments for DRGs created a functioning market in care by identifying the products of engineers with the assumption of economists. Accountants, meanwhile, took this as a business opportunity to increase revenues. The transformation of medical service to care was intended to reduce runaway medical costs. Market-driven healthcare has resoundingly failed to fulfill that intention. Nevertheless, it has won a symbolic success. The trade in care also implies a merger of the physical and the fiscal and puts a “price on life”. The fact that much of medical practice and ethics presuppose health as a matter of wealth says that life and death, no less than health and sickness, are professional artifacts and commodities rather than natural phenomena.     

The joint estimation of bank-level market power and efficiency

The aim of this study is to provide a methodology for the joint estimation of efficiency and market power of individual banks. The proposed method utilizes the separate implications of the new empirical industrial organization and the stochastic frontier literatures and suggests identification using the local maximum likelihood (LML) technique. Through LML, estimation of market power of individual banks becomes feasible, while a number of restrictive theoretical and empirical assumptions are relaxed. The empirical analysis is carried out on the basis of EMU bank data. Market power estimates indicate fairly competitive conduct in general; however, heterogeneity in market power estimates is substantial across banks. The latter result suggests that the practice of some banks deviates from the average fairly competitive behavior, a finding that has important policy implications. Finally, efficiency and market power present a negative relationship, which is in line with the so-called “quiet life hypothesis”.     

Overreaction in the Hong Kong stock market

Overreaction reported in the equity markets of the United States, Spain, and Brazil is also observed in the Hong Kong stock market. The “loser” portfolios of the 33 stocks in the Hang Seng Index (HSI), on average, outperform the “winner” portfolios by 9.9% 1 year after the formation periods. Besides its emphasis on the importance of the Hong Kong market in international investment, this paper is unique in some special features related to the overreaction study. Hong Kong has markets for index futures and stock futures. Only three stocks are used in the portfolios. All the stocks in the HSI have large market capitalization and liquidity and can be shorted with no up-tick rule. Unlike other studies in international stock markets, the “arbitrage” portfolio of buying the loser portfolio and shorting the winner portfolio can actually be formed with minimum cost and easy execution, which makes the overreaction phenomena in this study very powerful.     

Rethinking the profession-state dynamic: The case of the Victorian charter attempt, 1885–1906

Historical analyses of specific professionalization projects and of the profession-state axis have been suggested as possible remedies for the “unexciting routine” into which the sociology of the professions has recently slipped. Accordingly, this essay analyses an attempt by Victorian accountants to attain a Royal Charter from 1904 to 1906 and its antecedent world dating from 1885 to 1903. It tracks the shifting constraints upon, and opportunities available to key players in state agencies and accounting associations. It thereby accounts for the shifts in the aims and strategies of those, the intended and unintended consequences of their actions, and the ultimate outcome of the charter attempt. In doing so it questions the assumption of a tightly defined concept of occupational “monopoly” or “closure” associated with a stable set of strategic imperatives. It also questions the tight coupling of action, interest, and outcome implied by “crude” Marxian analyses, and supports the contention that “professions” are the dynamic outcome of the mutual interaction of “state” and “profession”.