Introduction to Special Issue on Energy Finance

Decisions in Economics and Finance -     

The multiple filter test for change point detection in time series

A framework for the detection of change points in the expectation in sequences of random variables is presented. Specifically, we investigate time series with general distributional assumptions that may show an unknown number of change points in the expectation occurring on multiple time scales and that may also contain change points in other parameters. To that end we propose a multiple filter test (MFT) that tests the null hypothesis of constant expectation and, in case of rejection of the null hypothesis, an algorithm that estimates the change points.The MFT has three important benefits. First, it allows for general distributional assumptions in the underlying model, assuming piecewise sequences of i.i.d. random variables, where also relaxations with regard to identical distribution or independence are possible. Second, it uses a MOSUM type statistic and an asymptotic setting in which the MOSUM process converges weakly to a functional of a Brownian motion which is then used to simulate the rejection threshold of the statistical test. This approach enables a simultaneous application of multiple MOSUM processes which improves the detection of change points that occur on different time scales. Third, we also show that the method is practically robust against changes in other distributional parameters such as the variance or higher order moments which might occur with or even without a change in expectation. A function implementing the described test and change point estimation is available in the R package MFT.     

Land Taxes in Agriculture

A bstract Farmland , which occupies two thirds of America's privately owned territory, provides more than food and fiber. Agricultural uses of land preserve open space, filter and store water, supfwrt wildlife, conserve rural resources, enlarge life style opportunities for an urban society. One instrument for preserving agricultural land from urban developmental pressures is the preferential assessment for real property tax, essentially a two rate tax favoring farming as a land use. Preferential assessment, administered typically at small, nonrollback differentials, has not deterred intensive land use changes. Indeed, it may have had the opposite effect. Changes in the tax on land and buildings are recommended as improvements in the preferential assessment of agricultural land.     

Investments in consumer relationships: a critical reassessment and model extension

This study is a critical reassessment and extension of De Wulf et al.'s (2001) framework investigating retail investments in consumer relationships. Their initial model relates four types of relationship marketing efforts to perceived relationship investment, in turn influencing relationship quality and ultimately behavioural loyalty. Based upon signalling theory, we extend this model by introducing product and service efforts as additional antecedents. Moreover, in contrast to the use of self-reported measures in the initial model, we apply customer database information in order to measure the construct of behavioural loyalty. Based upon 187 consumers reporting on their relationship with a Belgian apparel retailer, the SEM results provide guidelines for retailers how to increase the quality of their relationships with consumers by strengthening consumers' perceptions of relationship investment.     

Interests, Institutions and Industrial Relations

In the comparative politics literature there are two main approaches to the impact of international economic change on national policy patterns. The first — new institutionalism — has been very influential in comparative industrial relations scholarship. The second, which focuses on the role of interests, has been less prominent. Comparing industrial relations reform in Australia and New Zealand during the 1980s and 1990s, this paper argues that there are a number of limitations to an institutionalist approach and outlines a framework for the comparative study of the impact of international economic change on national patterns of industrial relations which integrates both institutionalist and interest‐based approaches.     

India’s Green Revolution: Economic Gains and Political Costs

Research and development (R&;D) promotion policies are critical for economic development in the sense that they contribute to technical progress. Although it is true that policy space is restricted under the World Trade Organization (WTO) system, there are still some R&;D promotion policy measures made available to developing countries. It is thus necessary for developing countries to utilize such available measures. In addition to explaining the R&;D promotion measures available under the current WTO regulations, I provide suggestions for modifying the Uruguay Round Subsidies Code with respect to the R&;D promotion policies of developing countries from the viewpoint of “distributional fairness” in international trade relations.     

Exploring the post-termination stage of consumer–brand relationships: An empirical investigation of the premium car market

This research extends customer lifecycle models to include a post-termination stage that bridges the dissolution stage of a consumer–brand relationship with a potential recovery stage. Drawing from 43 depth interviews with former customers of a car brand, this study relies on grounded theory and triangulation to explore consumer responses in the post-termination stage and finds evidence for both negative and positive customer responses after dissolution. The authors combine qualitative techniques with categorical principal component analysis (CATPCA) to explore the dimensionality of post-termination responses and extract relationship-related and termination-related response dimensions. They use these dimensions to identify four distinct post-termination customer clusters, which differ systematically with the customer's termination reasons, as demonstrated through a series of exact logistic regressions. In addition to providing evidence of a post-termination stage, this study offers implications for customer relationship management.