Unbiased estimation of expected return using CAPM

Estimation of expected return is required for many financial decisions. For example, an estimate for cost of capital is required for capital budgeting and cost of equity estimates are needed for performance evaluation based on measures such as EVA. Estimates for expected return are often based on the Capital Asset Pricing Model (CAPM), which states that expected excess return (expected return minus the risk-free rate) is equal to the asset's sensitivity to the world market portfolio (β) times the risk premium on the “world market portfolio” (the market risk premium). Since the world market portfolio, by definition, contains all assets in the world, it is not observable. As a result, an estimate for expected return is commonly obtained by taking an estimate for β based on some index (as a proxy for the world market portfolio) and an estimate for the market risk premium based on a potentially different index and multiplying them together. In this paper, it is shown that this results in a biased estimate for expected return. This is undesirable since biased estimates lead to misallocation of funds and biased performance measures. It is also shown in this paper that the straightforward procedure suggested by Fama and MacBeth [J. Financ. Econ. 1 (1974) 43] results in an unbiased estimate for expected return. Further from the analysis done, it follows that, for an unbiased estimate, it does not matter what proxy is used, as long as it is used correctly an unbiased estimate for expected return results.     

Housework and the Wages of Young, Middle-Aged, and Older Workers

This article uses samples of young, middle-aged, and older married workers drawn from the Panel Study of Income Dynamics to examine whether the effect of housework time on wages differs among these age groups. Results from OLS, fixed effects, and panel data instrumental variables models show that young and middle-aged wives are the only groups for which the authors find consistent evidence of a housework effect on wages. Each additional hour of housework reduces their wages by 0.1–0.4%. Additionally, the analysis finds evidence that for young workers, housework time is an important determinant of the male/female wage gap. (JEL J16 , J22 , J31 )     

Back to the future. Is industry 4.0 a new tecno-organizational paradigm? Implications for Latin American countries

ABSTRACT

The objective of this article is to establish a dialogue between the recent ‘Industry 4.0’ (I4.0) literature and evolutionary neo-Schumpeterean studies about techno-organizational paradigms. In that direction, we wonder whether I4.0 constitutes a new paradigm, as it is assumed by the first group of literature, or it represents – until the moment – an intensification of key features of the information and communication technology (ICT) paradigm, following the second group of studies. Some questions are raised about the implications of I4.0 for developing countries (DEC), afterwards. Specifically, we reflect on the possibilities of these countries to identify and take advantage of new windows of opportunity, opened by the development and diffusion of these technologies. In this regard, the review of recent Latin American experience raises strong concerns regarding I4.0 as a new source of intra- and international heterogeneity, linked to the severe difficulties these countries have in appropriating these technologies in the form of productivity gains and quasi-rents. It seems that this is partially derived from weak technological, organizational, and connectivity capabilities paths of accumulation between institutions and actors.     

The role of peer-to-peer voice in severe work environments: organisational facilitators and barriers

Encouraging and facilitating employee voice among frontline employees is important in organisations to draw out problems and issues that can potentially be addressed and mitigated by organisational policies and practices. Using Conservation of Resources theory, this study focuses on paramedics and the formal and informal voice mechanisms used to safeguard their well-being. We observe that paramedics are often unwilling to use formal support mechanisms, at least in the first instance immediately following exposure to a traumatic event, but they see informal peer-to-peer voice as critical in preventing resource loss and regaining resources for subsequent call-outs. We also found that without an awareness of the importance of this support mechanism, changes in work organisation can unintentionally and unknowingly limit their capacity to engage in this form of support. Losing peer-to-peer voice can lead to the build-up of stress that could otherwise be mitigated, resulting in diminished well-being.     

Does Foreign Presence Induce Host Country Firms’ Exit? The Case of Portugal

International Advances in Economic Research - This paper analyzes the impact of foreign presence on the probability of exit of host country firms, based on a significant sample of Portuguese...     

Sexual harassment in organizations

Sexual harassment is now recognized as a potential problem for most organizations. The purpose of this paper is to provide an introduction to the various aspects of sexual harassment as a problem: its definition (including both the economic injury and hostile environment types of harassment), its characteristics, and a discussion of how to deal with such problems in the workplace. Organizations are encouraged to act affirmatively by (1) establishing a policy prohibiting sexual harassment in the organization; (2) establishing and making employees aware of a grievance procedure for sexual harassment complaints; and (3) educating employees about the problem of sexual harassment through a combination of awareness and experiential training techniques.     

The impact of diverse measures of default risk on UK stock returns

A number of recent papers examine the relationship between default risk and equity returns, and the results are mixed. These studies employ different measures of default risk and we find that correlations between eight diverse measures of default risk tend to be less than 50%. Nonetheless, we find that the relationship between stock returns and diverse measures of default risk tends to be consistent; default risk is a significant determinant of stock returns and this relationship is “hump backed”, as predicted by Garlappi and Yan (2011).