Efficient theory development and factor retention criteria: Abandon the ‘eigenvalue greater than one’ criterion

Other things being equal, a theory with fewer constructs is preferable over others. In exploratory factor analysis, a common method used in theory development, the most popular factor retention criterion used in marketing is the eigenvalue greater than one rule. Its use often results in over extraction, which leads to the development of less than parsimonious theories. Even the use of confirmatory factor analysis fails to detect the presence of these superfluous constructs. Although several more accurate criteria exist, they are not discussed in major marketing research texts, journals, and popular statistical software packages. In this paper, we appraise popular factor retention practices in marketing, demonstrate how they may lead to the development of inefficient theories, draw attention to a number of resources for choosing appropriate retention criteria, and develop an easy-to-use Web-based engine to effortlessly implement one such method, parallel analysis.     

Econometric Analysis of the India–Sri Lanka Free Trade Agreement*

This paper investigates whether the India–Sri Lanka Free Trade Agreement (ISLFTA) has had trade creation or trade diversion effects on the rest of the world. Using data on tariffs at the six‐digit level of the Harmonized System classification for the period 1996 to 2006, the methodology of the present paper follows a study on the North American Free Trade Agreement by Romalis (2005 ) We use the commodity and time variation in the tariff preferences allowed under ISLFTA to identify its effect on sourcing of different products from the ‘control country’ to the ISLFTA region. Using a fixed effects model, we find that the ISLFTA has had small trade creation effects in the control countries.     

Informal sector, income inequality and economic development

This paper addresses - with the help of numerical simulations - some of the issues relating to income distribution in the context of development of an economy with an informal sector and migration of both low- and high-skilled workers from the rural to the urban area. A major aim has been to see under what conditions we do or do not get an inverted U-shaped curve of income distribution. The paper finds that the tendency always is for the Gini coefficient to rise and then decline. However, once it starts declining, it need not continuously decline; it may rise, then decline, then rise again and indeed rise above the previous peak before starting to decline again and may well end at the end of the simulation at a higher value than at the start. Any case for the redistribution of income is seen to be much stronger at the later stages of development that at earlier stages, even though at later stages, Gini coefficient may be lower than at earlier stages. The policy implications of the findings are considered.     

Beyond the management–employee dyad: supply chain initiatives in shipping

This article examines supply chain health and safety initiatives in the oil shipping industry. In particular, it explores the triangular relationships between ship cargo clients, shipping company management and seafarers and reveals the inherent complexities and tensions involved. It shows that while managers capitalise on the supply chain pressure to squeeze more effort out of seafarers, seafarers tend to adhere to the corporate line colluding with managers to hide defects and falsify records. Nevertheless, seafarers occasionally use the supply chain leverage to their advantage by tactically exposing ship defects during ship inspections.     

Decentralized environmental regulations and plant‐level productivity

Using the framework provided by the Porter hypothesis, we study the impact of environmental regulations and enforcement policies on plant‐level green total factor productivity (TFP) growth and its components related to efficiency change and technical change. The detailed microdata we use are from Sweden and for the pulp and paper industry. This industry is the source of significant amounts of water and air pollution and is one of the most heavily environmentally regulated manufacturing industries. Sweden has a unique decentralized regulatory structure where the manufacturing plants have to comply with plant‐specific regulatory standards stipulated at the national level, as well as decentralized local supervision and enforcement. Our empirical results point to beneficial impacts of the environmental policies on plants' green TFP growth and sustainable production practices. We also find that political economy considerations are important, as the presence of the Green Party and aspects like plant size (with corresponding local and regional economic effects) matter in enforcement of the standards.     

Top managers in the digital age: Exploring the role and practices of top managers in firms' digital transformation

This study explores the role and facilitating actions of top managers in response to the digital transformation. Building on 27 in-depth interviews with top managers and close associates from large German firms, we find that top managers respond to the digital transformation by engaging in three key actions: understanding digitalization, setting the formal context for digitalization, and leading change. Moreover, findings emphasize that top management team support is essential in firms' digital transformation. Overall, this study contributes novel insights about the consequences of top managers for firms and establishes an initial foundation for investigating top managers in the digital age.     

Market evidence of misperceived mortality risk

We construct and implement a test of rational consumer behavior in a high-stakes financial market. In particular, we test whether consumers make systematic mistakes in perceiving their mortality risks. We implement this test using data from secondary life insurance markets where consumers with a life-threatening illness sell their life insurance policies to firms in return for an up-front payment. We compare predictions from two models: one with consumers who correctly perceive their mortality risk, and one with consumers who are misguided about their life expectancy, and find that our data are most consistent with the predictions made by the second model.     

ROLLING DICE FOR THE FUTURE OF THE PLANET

In an influential paper published in Science, Nordhaus employs an integrated climate-economy model to study climate change. He finds that optimizing climate change policy requires low levels of controls on emissions of greenhouse gases. This paper follows his pioneering methodology but challenges his conclusions. Nordhaus's results depend crucially on certain parameters such as the discount rate and the autonomous decline in energy intensity of production. However, choosing a set of different though equally plausible values for these parameters causes the control rate to rise substantially. This translates into a greater level of action for slowing climate change.