Can Companies Influence Investor Behaviour through Advertising? Super Bowl Commercials and Stock Returns

Recent research shows that mood and attention may affect investors’ choices. In this paper we examine whether companies can create such mood and attention effects through advertising. We choose a natural experiment by investigating price reactions and trading activity for firms employing TV commercials in 19 Super Bowl broadcasts over the 1969–2001 period. We find significant positive abnormal returns for firms which are readily identifiable from the ad contents, which is consistent with the presence of mood and attention effects. For recognisable companies with the number of ads greater than the sample mean, the event is followed by an average abnormal one day return of 45 basis points. The effect appears to persist in the short term with the 20‐day post‐event cumulative abnormal returns for such firms averaging 2%. We find significant abnormal net buying activity for small trades in shares of recognised Super Bowl advertisers indicating that small investors tend to be the ones most attracted by the increased publicity.     

Interest-rate and calendar-time effects in money market fund and bank deposit cash flows

We examine the sensitivities of aggregate balances of retail and institutional money market funds (MMFs) and their potential substitutes, bank deposits, to changes in short-term interest rates while controlling for calendar-time effects. We find that institutional MMF and time deposit cash flows are sensitive to recent changes in short-term interest rates. Institutional MMF investors appear to take advantage of arbitrage opportunities created by MMFs using the amortized cost technique. Retail MMF investors are much less responsive to changes in interest rates.     

Informality in an economy with active labour courts

Job regulations and the justice branch interfere on several aspects of labour contracts. We build a model which explores the role of labour courts on the wage distribution in both formal and informal sectors. We obtain that the presence of active labour courts produces a negative relation between the wage gap and the productivity of the worker, a regularity documented in the empirical literature. Active labour courts also reduce informality of unskilled workers but do not have an impact on informality of skilled workers. Some elements and implications of our model are tested using Brazilian data.     

Risk attitudes and migration experience

Although risk and uncertainty are intrinsic to human migration, there is surprisingly little explicit research on the willingness to take risks in this context. This paper analyses whether migrants are more or less likely than non‐migrants to be risk tolerant, and whether these differences are gendered. Attitudes are explored in terms of responses under conditions of both risk and uncertainty, and self‐assessment of capabilities is also taken into account. The research is based on a sample of students who provide a relatively homogeneous group in socio‐economic terms, and relatively large numbers of individuals with experiences of temporary migration. Their attitudes to risk were assessed under experimental conditions, which measured their willingness to take risks on hypothetical gambles under different conditions. While there are some differences between males and females, and between migrants and non‐migrants, the outstanding finding is the far greater risk tolerance of female migrants as opposed to female non‐migrants, especially when compared to males.     

Strategic alliances,organizational learning,and competitive advantage: The HRM agenda

In the context of strategic alliances that involve competitive collaboration, the competitive advantage of a firm can be protected only through its capability to accumulate invisible assets by a carefully planned and executed process of organizational learning. As this process is embedded in people, many of the necessary capabilities are closely linked to HRM strategies and practice. The article advocates that the transformation of the HR system to support the process of organizational learning is the key strategic task facing the HR function in firms engaged in international cooperative ventures.     

Calculation of scale elasticities in DEA models: direct and indirect approaches

The qualitative characterisation of returns to scale in DEA has been a research issue the last decade. However, quantitative information provides the ultimate information. This paper presents two ways of obtaining numerical values of scale elasticity by an indirect approach using efficiency scores and dual variables for radial projections of inefficient points to the frontier, and a direct approach that is more general and powerful and directly evaluates numerically scale elasticity at any point on the DEA surface along intersections with planes. The direct and indirect approaches are compared using real data and a very high correspondence is found.     

HOW MISLEADING ARE INCOME DISTRIBUTIONS?

Starting from the proposition that economic welfare is better measured by the capitalized value of expected future income at age 18 than by income at a point of time, the present paper explores the bias introduced in comparison of earnings and income distributions.
The earning distribution chosen for study is that for males in 1959 in the United States. It is shown that earnings distributions are biased and therfore can be considered highly misleading in most comparisons unless the comparison involves two groups with identical age distributions and identical distributions of earnings over the working life of earners.
Further, a most striking effect can be discerned in comparing the earnings to the present value distributions by educational level. As one moves up the educational ladder, the within-group distribution of lifetime income becomes more and more equal, in sharp contrast to the findings for the distribution of earnings at a point in time.
The result are sufficiently interesting and striking to warrant further studies of distributions of present value of lifetime expected earnings (and income).     

EMPLOYER‐PROVIDED HEALTH INSURANCE AND JOB MOBILITY: DID THE AFFORDABLE CARE ACT REDUCE JOB LOCK?

Many have argued that concerns over health insurance reduce labor market mobility in the United States, causing a “job lock” effect. We take advantage of the novel natural experiment created by the Affordable Care Act's dependent coverage mandate to estimate the magnitude of the job lock effect for young adults. Using the 2008–2013 Current Population Survey and a difference‐in‐difference research design, we find that the expansion of dependent coverage did not increase job mobility, suggesting that job lock is not a major concern for young adults. (JEL J62, I13, I18)