BALANCED VARIABLE ADDITION IN LINEAR MODELS

This paper studies what happens when we move from a short regression to a long regression in a setting where both regressions are subject to misspecification. In this setup, the least‐squares estimator in the long regression may have larger inconsistency than the least‐squares estimator in the short regression. We provide a simple interpretation for the comparison of the inconsistencies and study under which conditions the additional regressors in the long regression represent a “balanced addition” to the short regression.     

A Method for Identifying Actors in a Knowledge Based Cluster

The objective of the paper is to develop a method through which we can identify the actors (industrial, institutional and individual) who are active in technology development in the same or similar knowledge fields. The paper is, thus, aimed to make a methodological contribution to the literature, which has emerged on the systemic nature of innovation. The method involves broadening out from a starting point in a specific patent class, which corresponds as closely as possibly to the technological area of interest, to a set of related patent classes by using co-classifications and citations. After close scrutiny of both patent classes and patents, the actors in the new classes, as well as in the original class, are then identified. We try out the method on radio wave antennas for communication technology in Sweden. We find a range of firms and other actors in a whole set of industries, which bear little relation to one another in an input-output sense. Although we cannot ascertain the extent of linkages or relations between these actors, our hypothesis is that they constitute a cluster around radio wave antenna technology in Sweden.     

Can the label ‘member’ in a loyalty program context boost customer satisfaction?

ABSTRACT

This study examines if labeling customers as ‘member’ versus ‘non-member’ in the context of a firm’s loyalty program can influence the customers’ evaluations of the firm. It was assumed that firms’ membership-related labels, which typically are euphemisms in relation to the mere discounts offered by many loyalty programs, can (a) prime customers so that positively charged content in a general member category is activated, and that (b) this content can have a positive impact on evaluations of firms with loyalty programs. An experiment showed that evoking customers’ membership status resulted in a higher level of sense of belonging, and higher customer satisfaction, for members than for non-members. Sense of belonging mediated the impact of evoking membership status on customer satisfaction. A second study confirmed that the content of customers’ general member construct is indeed associated with sense of belonging and satisfaction.     

How Much Do Private Equity Funds Benefit From Debt‐related Tax Shields?

In 2008 the German government enacted a measure designed to curb excessive leverage in LBOs by limiting tax‐deductible interest to 30% of EBITDA. And in the U.S., legislators are currently reviewing several regulatory measures, including limits on tax‐deductible interest, that are intended to reduce the leverage of portfolio companies in U.S. LBO funds. In their recent study of 56 German LBOs transacted after the tax law change in 2008, the authors analyze the importance of debt‐related tax savings and the economic consequences of their reduction for the PE business model. The study begins by confirming that LBO debt tax shields are a material component of LBO purchase prices, contributing as much as 20% of the average estimated total enterprise value. At the same time, however, the study finds that the effects on LBO fund returns of limits to the taxdeductibility of LBO interest payments are likely to be modest, in part because a large portion of the value from expected tax savings is effectively paid for upfront by the private equity firm in the form of higher LBO purchase prices. Moreover, the authors do not expect to see LBO funds change their business model in response to this change in taxdeductibility. Based on their findings, the authors expect neither a significant decline in LBO leverage nor a notable change in the pricing of PE deals. As finance scholars have suggested, there are significant benefits associated with the use of debt that have nothing to do with the tax shield provided by the deductibility of interest. The authors' results provide yet another piece of evidence suggesting that taxes have at most a second‐order effect on corporate financing decisions—and that the gains to private equity come mainly from improvements in operating performance.     

Short brand stories on packaging: An examination of consumer responses

The persuasiveness of stories and their influence on consumers have been acknowledged in marketing, particularly within the advertising field. In marketing practice, brand stories are increasingly also appearing on product packages. However, packages differ from ads in significant ways as communication channels; for example, the space for messages on a package is limited by the size of the package. This study reports findings from two experiments comparing consumer responses to fast‐moving consumer good (FMCG) packages with and without short brand stories. The findings show that even a short brand story included on FMCG packaging has a positive impact on consumers’ affective, attitudinal, product value, and behavioral intention responses to the brand.     

Do E‐verify mandates improve labor market outcomes of low‐skilled native and legal immigrant workers?

We examine the impact of the 2007 Legal Arizona Workers Act (LAWA) on employment outcomes of low‐skilled legal workers. We use the synthetic control method to select a group of states against which the labor market trends of Arizona can be compared. Our results suggest that contrary to its intent, LAWA does not appear to have improved labor market outcomes of legal low‐skilled workers who compete with unauthorized immigrants, the target of the legislation. In fact, we find some evidence of diminished employment and increased unemployment among legal low‐skilled workers in Arizona. These findings are concentrated on the largest demographic group of workers—non‐Hispanic white men. While they are less likely to find employment, those who do have on average higher earnings as a result of LAWA. The pattern of results points to both labor supply and labor demand contractions due to LAWA, with labor supply dominating in terms of magnitude.     

Nonparametric estimation for self-selected interval data collected through a two-stage approach

Self-selected interval data arise in questionnaire surveys when respondents are free to answer with any interval without having pre-specified ranges. This type of data is a special case of interval-censored data in which the assumption of noninformative censoring is violated, and thus the standard methods for interval-censored data (e.g. Turnbull’s estimator) are not appropriate because they can produce biased results. Based on a certain sampling scheme, this paper suggests a nonparametric maximum likelihood estimator of the underlying distribution function. The consistency of the estimator is proven under general assumptions, and an iterative procedure for finding the estimate is proposed. The performance of the method is investigated in a simulation study.     

A welfare comparison of ad valorem and unit tax regimes

This paper strives to merge two strands of the literature. The first group of papers compares ad valorem and unit taxes in a tax competition framework in terms of welfare. The second group of papers regards capital income taxes as a conjunction of taxes on pure profits and taxes on capital income. We find that, given decreasing returns to scale, there always exists a level of the share of deductible capital costs strictly smaller than one, such that for all values larger than this threshold, an ad valorem tax regime unambiguously Pareto-dominates a unit tax regime.     

Stock Returns and Exchange Rate Nexus in Ghana: A Bayesian Quantile Regression Approach

This paper presents analysis of the relationship and dependence structure between stock returns and exchange rates in Ghana using data of daily periodicity from January 4, 2011 to July 31, 2014. Analyses are conducted by means of Bayesian quantile regression (QR) technique and multiple causality tests. Our findings suggest high dependence of the equity market on the foreign exchange market in Ghana, and that the link between the two markets follows the international trade‐oriented model more than the portfolio balance theory. We report that among the six exchange rates used, only the cedi–dollar registers instantaneous effect on the equity market.     

Trade,Migration and Integration – Evidence and Policy Implications

This paper takes as its point of departure the unique position recently adopted by Swedish policymakers emphasising migration as a tool to increase trade. We attempt to empirically scrutinise this position. Our results demonstrate that migrants stimulate exports, especially along the extensive product margin of trade and for differentiated products, but have no significant impact on imports. This finding suggests that for small open economies where numerous immigrants are refugees, the strategy of using migration to facilitate trade may only be effective with respect to exports. This paper also contributes to the literature on trade and migration by exploiting data on gender and age, which allow us to draw inferences on the underlying impact channels. We adopt an instrumental variable approach to address the endogeneity issue due to potential reverse causality. The pattern of results is consistent with the hypothesis that migration primarily reduces fixed trade costs resulting from information and trust friction across migrant host and source countries. Importantly, the results imply that policymakers may be able to promote trade by improving immigrants’ labour market integration instead of simply being restricted to promoting more liberal immigration policies, which is generally more controversial.