An empirical examination of CobiT as an internal control framework for information technology

One commonly used framework for developing and evaluating technology intensive information systems is CobiT. This framework was originally a benchmark of best control practices developed and maintained by the Information Technology Governance Institute, the umbrella organization to the Information Systems Audit and Control Association. We empirically examine the conceptual model that underlies the CobiT internal control framework as it applies to an audit setting (including operational, compliance, and financial audit settings). We find that superimposing CobiT's conceptual model onto audit relevant assessments made by a panel of highly experienced IT auditors confirms the internal consistency between the underlying constructs of CobiT. Furthermore, we find that CobiT's conceptual model predicts auditor behavior in the field related to their seeking help and giving help as evidenced by their postings to a general IT audit listserv. Given the results of this study, we propose future research aimed at developing a general theory of internal control applicable to information technology based on CobiT.     

Accounting control systems and business strategy: An empirical analysis

Accounting theoreticians have argued that control systems should be modified in accordance with the business strategy of a firm. This study tests this hypothesis by examining differences in accounting control system attributes between two groups of firms following distinctly different strategies. Interview data and questionnaire data are used to provide evidence of the ways in which firms align their control systems and strategy. In addition, prelimenary evidence is discussed which suggests a relationship between accounting control systems, business strategy and firm performance.     

An empirical application of the EVA® framework to business cycles

Following financial concepts like duration and economic value added (EVA®) we estimate the impact of interest rate movements on firms that are more and less roundabout. We find that firms that are more roundabout, that is, work with expected cash-flows with higher duration, are more sensitive to interest rate movements. To the extent that monetary policy is able to move the discount rate used by investors, monetary policy changes the relative present value of any investment project and therefore affects resource allocation. We show evidence that this effect is present in the U.S. in the years prior to the subprime crisis.     

Forbearance: An empirical analysis

Several recent articles have analyzed conditions under which allowing capital-deficient banks to continue to operate may be optimal policy. This article examines the performance of banks admitted into the FDIC's Capital Forbearance Program between 1986 and 1989 and finds that, for the majority of these banks, there was no substantial improvement in their capital ratios. We use a logit regression analysis to attempt to identify those banks whose financial condition improved with forbearance and find that banks which did improve are not clearly identifiable from pre-forbearance financial data. Instead, the banks which improved did so due to infusions of new capital, extraordinary income, and improvements in the local economies, factors which are not easily identifiable ex ante by regulators. The conclusion is that, while some grants of forbearance may result in large saving to the FDIC, in the majority of cases granting forbearance to troubled banks is unlikely to reduce the expected loss to the deposit insurer.University of HoustonUniversity of HoustonCooperative Bank of Taiwan, Taipei, Taiwan     

An empirical analysis of the stock price-volume relationship

This paper investigates the empirical relationship between absolute stock price changes and trading volume in the stock market. Using Granger causality tests we find that there is a significant causal relationship between absolute price changes and volume at the firm level and that this relationship is stronger in periods surrounding earnings announcements. We view this as suggesting that information arrival follows a sequential rather than a simultaneous process, although the results do not support an extreme version of either information arrival model.     

Secondary currency: An empirical analysis

Many cases exist of multiple currency usage throughout history. As two leading examples, secondary currencies were widespread during both the Great Depression in the United States and the 2002 recession in Argentina. What are the determinants of multiple currency usage and what is the effect on economic activity? Both issues are empirically addressed using individual-level surveys collected by the authors in Argentina during 2002 and 2003. The evidence supports the theoretically predicted determinants of secondary currency acceptability put forth in monetary theory. In particular, findings show that the acceptability of the secondary currency increases when the supply of national currency is low, the relative transaction cost of the secondary currency is low, and the individual trading technologies are less effective. Moreover the acceptability of the secondary currency has real effects on economic activity. Among those who use the secondary currency the monthly income gain is more than 15% of the average Argentine's monthly income. Excluding trades of used goods, this amounts to a 0.6% increase in GDP.     

An empirical analysis of the interfirm equity investment process

This paper measures the effects on stock proces of corporate investments in 5% or more of another company's equity securities. Such investments initiate a process that may end with a takeover, targeted repurchase, takeover by a third party, or sale of the shares. The total valuation effect of the investment for acquiring and target firms includes returns at disclosure of the investment position, the outcome announcement, and related intervening events. For example, the positive return for target firms at initial disclosure of the investment more than offsets the negative return at a targeted repurchase.     

An empirical analysis of multivariate copula models

Since the pioneering work of Embrechts and co-authors in 1999, copula models have enjoyed steadily increasing popularity in finance. Whereas copulas are well studied in the bivariate case, the higher-dimensional case still offers several open issues and it is far from clear how to construct copulas which sufficiently capture the characteristics of financial returns. For this reason, elliptical copulas (i.e. Gaussian and Student-t copula) still dominate both empirical and practical applications. On the other hand, several attractive construction schemes have appeared in the recent literature promising flexible but still manageable dependence models. The aim of this work is to empirically investigate whether these models are really capable of outperforming its benchmark, i.e. the Student-t copula and, in addition, to compare the fit of these different copula classes among themselves.     

An empirical analysis of the equity markets in China

This paper subjects the newly established stock markets in Shanghai and Shenzhen to tests of market efficiency, utilizing daily stock price data. Using a battery of tests, the study concludes that there are significant inefficiencies present on both exchanges. These can be traced to the unique structural and institutional problems that plague both exchanges. The study also tests for the presence of seasonal anomalies on both exchanges. The results show that there are significant negative weekend and positive holiday effects, but there is no evidence of a January effect or early January effect.     

An empirical analysis of European stock repurchases

In this paper, we examine the share price effects and determinants of share repurchase programs for French, German, Italian, and British firms. Like US firms, we find that German and Italian share repurchases are met with a positive and significant share price response. However, British repurchase announcements exhibit small positive abnormal returns, and abnormal returns for French share repurchases are insignificantly different from zero, both results being quite different from results found in studies of US firms. We also investigate the determinants of the size of the share repurchase program.Our results indicate support for the Undervaluation Hypothesis and the Takeover Deterrence Hypothesis, and provide partial support for the National Investment Opportunity Set Hypothesis. Our results from our analysis of cumulative abnormal returns are also consistent with the Undervaluation, Takeover Deterrence, and National Investment Opportunity Set Hypotheses. However, we do not find support for the Excess Capital Hypothesis, the Intangibility Hypothesis or the Optimal Leverage Ratio Hypothesis.     

Corporate control and shareholder activism in Germany: An empirical analysis of hedge fund strategies

Government-initiated reforms of the German financial system two decades ago shifted corporate control activities from universal banks to capital markets. Hedge funds took advantage of these changes by acquiring stakes in weakly governed firms. For 653 hedge fund interventions between 2000 and 2020, this study analyzes the changes in financial and operating performance and firm characteristics before and after the event. We also assess the probabilities that a firm becomes a target and that an attack creates shareholders value. On average, hedge funds increased returns, with the magnitude depending on the period, level of aggressiveness, institutional ownership, and industry. Crisis and non-crisis results differ, as hedge funds strategies are mostly successful in a rising stock market environment. Typically, hedge funds targeted smaller and more visible firms with higher sales growth, lower leverage, and higher institutional ownership. After the attack, firm profitability and cash holdings decreased, leverage increased, while investments in M&A and capex declined. This research offers new empirical evidence on the success of hedge fund strategies in Germany and on the performance of targeted firms.     

Privatization and globalization: An empirical analysis

This paper examines the link between globalization-measured by foreign direct investment (FDI) and foreign portfolio investment (FPI) – and privatization of state-owned enterprises, in a multi-country sample that focuses on developing countries. We hypothesize that privatization has an effect on FDI/FPI as the process of fostering private sector participation is often accompanied by liberalization reforms, and by allocations of substantial shares of newly privatized firms to foreign investors. Similarly, we expect FDI/FPI to foster privatization efforts as new capital inflows, technology and managerial skills that accompany FDI/FPI make the environment more prone to competition, providing governments with incentives to privatize inefficient firms that need to be turned around. This relation is assessed in two ways, first in a dynamic panel using a generalized method of moments approach, and second through panel causality tests. We find a bi-directional positive relation between privatization proceeds and globalization, particularly in the case of FDI.     

Dividend reinvestment plans: An empirical analysis

This study examines the effect of initiating discount and no discount dividend reinvestment plans on shareholder wealth. The results show a negative response to DRP announcements, which is significantly smaller than that found in studies of new equity offerings. These results are consistent with the Scholes and Wolfson (1989) hypothesis that managers in need of equity capital use DRPs to mitigate the adverse stock price effects of new equity issue announcements. Furthermore, there is a significant difference in the price response of discount and no discount DRPs for industrial firms. This result is supportive of the signaling potential of discount DRPs. Supportive evidence is also found in the analysis of firm characteristics for industrial firms.     

An empirical analysis of corporate debt maturity structure

This paper provides an empirical investigation of the maturity structure of corporate debt. A dynamic model is estimated by GMM estimation procedure using data for an unbalanced panel of 429 non-financial UK firms over the period of 1983–96. The evidence provides strong support for the hypotheses that firms with more growth opportunities in their investment sets tend to have more shorter-term debt and firm size exerts a negative impact on debt maturity structure. The results also support the maturity-matching hypothesis that firms match the maturity structure of their debt to the maturity of their assets. There is less support for the view that firms use their debt maturity structure to signal information to the market. We do not find evidence for a negative correlation between taxes and debt maturity. Our results also suggest that firms have long-term target ratios and they adjust to the target ratio relatively fast, which might indicate that the costs of being away from target ratios are significant for firms.     

An empirical analysis of bank interest rate swaps

Considering the characteristics of banks that do and do not report interest rate swaps, the long-term interest rate exposure of a bank and the likelihood and extent of swap market participation are found to be positively related. Key to the finding is the inclusion of variables related to the provision of swap market intermediary services, which significantly explain both the likelihood of swap market participation and the notional value of outstanding swaps. The results suggest that the likelihood and extent of swap market participation by low-capitalized banks is less than for other banks.     

An empirical analysis of marginal conditional stochastic dominance

Stochastic dominance is a more general approach to expected utility maximization than the widely accepted mean–variance analysis. However, when applied to portfolios of assets, stochastic dominance rules become too complicated for meaningful empirical analysis, and, thus, its practical relevance has been difficult to establish. This paper develops a framework based on the concept of Marginal Conditional Stochastic Dominance (MCSD), introduced by Shalit and Yitzhaki (1994), to test for the first time the relationship between second order stochastic dominance (SSD) and stock returns. We find evidence that MCSD is a significant determinant of stock returns. Our results are robust with respect to the most popular pricing models.     

An empirical analysis of the economic impact of federal terrorism reinsurance

This paper examines the role of the federal government in the market for terrorism reinsurance. We investigate the stock price response of affected industries to a sequence of 13 events culminating in the enactment of the Terrorism Risk Insurance Act (TRIA) of 2002. In the industries most likely to be affected by TRIA—banking, construction, insurance, real estate investment trusts, transportation, and public utilities-the stock price effect was primarily negative. The Act was at best value-neutral for property-casualty insurers because it eliminated the option not to offer terrorism insurance. The negative response of the other industries may be attributable to the Act's impeding more efficient private market solutions, failing to address nuclear, chemical, and biological hazards, and reducing market expectations of federal assistance following future terrorist attacks.     

Ratings-based credit risk modelling: An empirical analysis

Banks have recently developed new techniques for gauging the credit risk associated with portfolios of illiquid and defaultable instruments. These techniques could revolutionise banks' management of credit risk and could in the longer term serve as a more risk-sensitive basis for calculating regulatory capital on banks' loan books than in Basel 2, the new regulatory capital framework. In this paper we implement a popular credit risk model that exploits the information in credit ratings to determine a portfolio's value-at-risk. Using price data on large eurobond portfolios, we assess, on an out-of-sample basis, how well the model tracks the risks it is supposed to measure.