How effective is European merger control?

This paper applies an intuitive approach based on stock market data to a unique dataset of large concentrations during the period 1990–2002 to assess the effectiveness of European merger control. The basic idea is to relate announcement and decision abnormal returns. Under a set of four maintained assumptions, merger control might be interpreted to be effective if rents accruing due to the increased market power observed around the merger announcement are reversed by the antitrust decision, i.e. if there is a negative relation between announcement and decision abnormal returns. To clearly identify the events' competitive effects, we explicitly control for the market expectation about the outcome of the merger control procedure and run several robustness checks to assess the role of our maintained assumptions. We find that only outright prohibitions completely reverse the rents measured around a merger's announcement. On average, remedies seem to be only partially capable of reverting announcement abnormal returns. Yet they seem to be more effective when applied during the first rather than the second investigation phase and in subsamples where our assumptions are more likely to hold. Moreover, the European Commission appears to learn over time.     

Bias-corrected estimates of reduction of post-surgery length of stay and corresponding cost savings through the widespread national implementation of fast-tracking after liver transplantation: a quasi-experimental study

Background: Fast-tracking is an approach adopted by Mayo Clinic in Florida’s (MCF) liver transplant (LT) program, which consists of early tracheal extubation and transfer of patients to surgical ward, eliminating a stay in the intensive care unit in select patients. Since adopting this approach in 2002, MCF has successfully fast-tracked 54.3% of patients undergoing LT.

Objectives: This study evaluated the reduction in post-operative length of stay (LOS) that resulted from the fast-tracking protocol and assessed the potential cost saving in the case of nationwide implementation.

Methods: A propensity score for fast-tracking was generated based on MCF liver transplant databases during 2011–2013. Various propensity score matching algorithms were used to form control groups from the United Network of Organ Sharing Standard Analysis and Research (STAR) file that had comparable demographic characteristics and health status to the treatment group identified in MCF. Multiple regression and matching estimators were employed for evaluation of the post-surgery LOS. The algorithm generated from the analysis was also applied to the STAR data to determine the proportion of patients in the US who could potentially be candidates for fast-tracking, and the potential savings.

Results: The effect of the fast-tracking on the post-transplant LOS was estimated at approximately from 2.5 (p-value?=?0.001) to 3.2 (p-value?Conclusion: The fast-track program was found to be effective in reducing post-transplant LOS, although the reduction appeared to be less than previously reported. Nationwide implementation of fast-tracking could result in substantial cost savings without compromising the patient outcome.     

Marginal q,Tobin's q,Cash Flow,and Investment

Many studies of the determinants of investment use Tobin's q to control for the investment opportunities of a firm. Tobin's q roughly measures the average return on a firm's capital anticipated by the market. More relevant for investment decisions, however, is the marginal return on capital. In this paper we estimate investment and research and development (R&D) equations using a measure of marginal q. We use marginal q to identify the existence of cash constraints and managerial discretion and as a separate explanatory variable. For a sample of 560 U.S. firms observed over the 1977-1996 period we present evidence confirming the existence of both cash constraints in some companies and managerial discretion in others.     

Insider ownership, ownership concentration and investment performance: An international comparison

This article makes two important contributions to the literature on the incentive effects of insider ownership. First, it presents a clean method for separating the positive wealth effect of insider ownership from the negative entrenchment effect, which can be applied to samples of companies from the US and any other country. Second, it measures the effects of insider ownership using a measure of firm performance, namely a marginal q, which ensures that the causal relationship estimated runs from ownership to performance. The article applies this method to a large sample of publicly listed firms from the Anglo-Saxon and Civil law traditions and confirms that managerial entrenchment has an unambiguous negative effect on firm performance as measured by both Tobin's (average) q and our marginal q, and that the wealth effect of insider ownership is unambiguously positive for both measures. We also test for the effects of ownership concentration for other categories of owners and find that while institutional ownership improves the performance in the USA, financial institutions have a negative impact in other Anglo-Saxon countries and in Europe.     

Trading-up on unmet expectations? Evaluating consumers’ expectations in online premium grocery shopping logistics

Geography and retail store locations are inherently bound together; this study links food retail changes to systemic logistics changes in an emerging market. The later include raising income and education, access to a wide range of technologies, traffic and transport difficulties, lagging retail provision, changing family structure and roles, as well as changing food culture and taste. The study incorporates demand for premium products defined by Kapferer and Bastien [2009b. The Luxury Strategy. London: Kogan Page] as comprising a broad variety of higher quality and unique or distinctive products and brands including in grocery organic ranges, healthy options, allergy free selections, and international and gourmet/specialty products through an online grocery model (n?=?356) that integrates a novel view of home delivery in Istanbul. More importantly from a logistic perspective our model incorporates any products from any online vendors broadening the range beyond listed items found in any traditional online supermarkets. Data collected via phone survey and analysed via structural equation modelling suggest that the offer of online premium products significantly affects consumers’ delivery logistics expectations. We discuss logistics operations and business management implications, identifying the emerging geography of logistic models which respond to consumers’ unmet expectations using multiple sourcing and consolidation points.     

公司复杂性、最优董事会及其独立性选择

当前各国公司治理都实施统一的董事会治理监管,然而公司经营环境复杂,最优董事会是否是内生性的争论成为近年来公司治理关注的焦点。本文以CEO寻租空间、监督成本等构建最优董事会抉择模型,研究发现:治理成本的存在,使得CEO寻租空间对董事会规模和独立董事比例有积极影响,而监督成本对二者有负面影响;从边际治理成本角度,最优董事会与其独立性存在一定程度的替代性。我国1999～2008年上市公司实证研究发现:一定监管条规下,最优规模与独立性的替代假说成立,鉴于公司经营差异性,僵化的监管制度将提升治理成本,造成董事会效率低下。由此,建议监管机构从治理执行效果出发,考虑最优董事会的相机抉择行为,采用柔性化的监管条规,提高公司治理绩效。     

Persistence of firm-level profitability in Turkey

The dynamics of company profits for 172 of the largest manufacturing firms in Turkey are studied. A time-series analysis is used to estimate the long-run projected profits and firm-specific speed of adjustment parameters that measures the rate at which short-run rents are eroded. While persistent profitability differences across firms are observed, there is also a moderately quick erosion of rents except for the most highly profitable firms. Firm characteristics rather than industry effects account for the differences in permanent profits. Contrary to the widespread view that developing countries suffer from uncompetitive markets, the results in this paper suggest that the intensity of competition in Turkey is no less than in developed countries and similar to other developing countries.     

Corporate governance and dividend pay-out policy in Germany

A new explanation of why dividends may be informative is put forward in this paper. We find evidence that dividends signal the severity of the conflict between the large, controlling owner and small, outside shareholders. Accordingly, dividend change announcements provide new information about this conflict. To test the rent extraction hypothesis and discriminate it from the cash flow signaling explanation, we utilize information on the ownership and control structure of the firm. We analyze 736 dividend change announcements in Germany over the period 1992-1998 and find significantly larger negative wealth effects in the order of two percentage points for companies where the ownership and control structure makes the expropriation of minority shareholders more likely than for other firms. The rent extraction hypothesis also has implications for the levels of dividends paid. We find larger holdings of the largest owner to reduce, while larger holdings of the second largest shareholder to increase the dividend pay-out ratio. Deviations from the one-share-one-vote rule due to pyramidal and cross-ownership structures are also associated with larger negative wealth effects and lower pay-out ratios. Finally, using Lintner's (American Economic Review 46 (2) (1956) 97-113) model of dividend determination we find corroborating results. The presence of a second largest shareholder with a considerable equity stake makes a crucial difference in the governance of the firm. Our results call for better minority shareholder rights protection and increased transparency in the course of European Capital Market Reform.     

Methods for multicountry studies of corporate governance: Evidence from the BRIKT countries

We discuss empirical challenges in multicountry studies of the effects of firm-level corporate governance on firm value, focusing on emerging markets. We assess the severe data, “construct validity”, and endogeneity issues in these studies, propose methods to respond to those issues, and apply those methods to a study of five major emerging markets—Brazil, India, Korea, Russia, and Turkey. We develop unique time-series datasets on governance in each country. We address construct validity by building country-specific indices which reflect local norms and institutions. These similar-but-not-identical indices predict firm market value in each country, and when pooled across countries, in firm fixed-effects (FE) and random-effects (RE) regressions. In contrast, a “common index”, which uses the same elements in each country, has no predictive power in FE regressions. For the country-specific and pooled indices, FE and RE coefficients on governance are generally lower than in pooled OLS regressions, and coefficients with extensive covariates are generally lower than with limited covariates. These results confirm the value of using FE or RE with extensive covariates to reduce omitted variable bias. We develop lower bounds on our estimates which reflect potential remaining omitted variable bias.     

Competition and the cost of health care

Previous studies of the underreporting of income for tax purposes have used private employees as the benchmark to which other groups’ compliance was measured. In this paper it is suggested that there are a number of circumstances when there will be an incentive for private employees and their employers to collude to understate employee wages and salaries for purposes of taxation. The existence of high marginal tax rates of income tax combined with high social security payroll taxes are the typical conditions that stimulate this behaviour. These conditions are present in North Cyprus. This paper examines a rich source of household consumption expenditure and income data for North Cyprus that allows one to separate out the consumption expenditures made by the self-employed, private employees and civil servants over specific periods of time. From the comparison of consumption expenditures on food by these three groups it is possible to estimate how much self-employed and the private employees understated their incomes as compared to the civil servants. It is found that in North Cyprus private employees understate their incomes by approximately the same proportion of their incomes as do the self-employed.