Remaining life estimation of used components in consumer products: Life cycle data analysis by Weibull and artificial neural networks

Environmental awareness and legislative pressures have made manufacturers responsible for the take-back and end-of-life treatment of their products. To competitively exploit these products, one option is to incorporate used components in “new” or remanufactured products. However, this option is partly limited by a firm's ability to assess the reliability of used components. A comprehensive two-step approach is proposed. The first stage phase statistically analyzes the behavior of components for reuse. A well-known reliability assessment method, the Weibull analysis, is applied to the time-to-failure data to assess the mean life of components. In the second phase, the degradation and condition monitoring data are analyzed by developing an artificial neural network (ANN) model. The advantages of this approach over traditional approaches employing multiple regression analysis are highlighted with empirical data from a consumer product. Finally, the Weibull analysis and the ANN model are then integrated to assess the remaining useful life of components for reuse. This is a critical advance in sustainable management of supply chains since it allows for a better understanding of not only service requirements of product, but the remaining life in a product and hence its suitability for reuse or remanufacture. Future work should assess: (1) reduction in downtime of process equipment through the implementation of this technique as a means to better manage preventative maintenance; (2) reduce field failure of remanufactured product; (3) selling-service strategy through implementation of the proposed methodology.     

The Exchange Rate and Inflation in the UK

The United Kingdom is a highly open economy, and has a monetary policy strategy of targeting inflation in consumer prices. In this paper, we look at the evidence from the UK on inflation behaviour, and examine the propositions from several theoretical models about inflation dynamics in an open economy, focusing in particular on the hypothesized connections between the exchange rate and consumer price inflation. Theoretical open‐economy macroeconomic models ‘cover the waterfront’ on this issue, ranging from ‘exchange rate disconnect’ to a rigid link between nominal exchange rate changes and inflation. We estimate on UK data the open‐economy Phillips curves implied by the alternative explanations. We argue that, of the alternatives considered, only a model where imports are modelled as an intermediate good, as in McCallum and Nelson (1999) , provides a reasonable match with the data. Unlike the standard model, in which imports are treated as a final consumer good, the intermediate‐goods specification provides support for a policy of CPI inflation targeting.     

Implementation of college admission rules

Summary We consider both Nash and strong Nash implementation of various matching rules for college admissions problems. We show that all such rules are supersolutions of the stable rule. Among these rules the lower bound stable rule is implementable in both senses. The upper bound Pareto and individually rational rule is strong Nash implementable yet it is not Nash implementable. Two corollaries of interest are the stable rule is the minimal (Nash or strong Nash) implementable solution that is Pareto optimal and individually rational, and the stable rule is the minimal (Nash or strong Nash) implementable extension of any of its subsolutions.We wish to thank Professor William Thomson for his efforts in supervision as well as his useful suggestions. We are grateful to the participants in his reading class, workshops at Bilkent University, University of Rochester, and in particular Jeffrey Banks, Stephen Ching, Bhaskar Dutta, Rangarajan Sundaram and an anonymous referee for their helpful comments.     

Determinants of cross-border merger premia

Firms have a broad range of rationales for engaging in cross-border mergers and other forms of foreign direct investment (FDI); while some companies are in search of the cost advantages provided by foreign resources, other firms are primarily interested in gaining access to new markets. Although a significant amount of research has explored the patterns of FDI, little work has been done to assess what influences the value of cross-border mergers and, in particular, what determines why some cross-border mergers are expected to result in higher synergies when compared to others. This paper explores what characteristics of a merger are expected to increase the synergies that a firm will accrue from a cross-border merger by testing how a variety of factors impact the premia paid to effectuate a cross-border merger. We find that firms are willing to pay a higher premium to obtain greater control over foreign firms, and that this control is even more important in mergers involving firms in emerging markets. We also find that the factors affecting deal premia in cross-border mergers differ based on whether the acquirer has a high or low intangible asset intensity level.     

Contract length heterogeneity and the persistence of monetary shocks in a dynamic generalized Taylor economy

We develop the generalized Taylor economy (GTE) in which there are many sectors with overlapping contracts of different lengths. In economies with the same average contract length, monetary shocks will be more persistent when longer contracts are present. Using the Bils–Klenow distribution of contract lengths, we find that the corresponding GTE tracks the U.S. data well. When we choose a GTE with the same distribution of completed contract lengths as the Calvo, the economies behave in a similar manner.     

Turbulence in growing and declining industries

Turbulence over the industry life cycle is examined for the case of Portugal using the lowest possible level of industry aggregation, thus allowing for the use of panel data to study the evolution of product markets. Replacement of exiting firms by subsequent entrants plays a primary role in generating turbulence in high growth markets, while displacement of incumbents by recent entrants is the main selection force in declining markets. As the industry life cycle progresses, trial-and-error entry and entry mistakes decrease, and turbulence subsides.     

An Examination of Entry and Competitive Performance in Rural Banking Markets

This article explores the change in the level of competition in rural banking markets after the deregulation that occurred following passage of the Riegle‐Neal Act of 1994. Using an empirical model that utilizes both the number of banks and the value of deposits in a cross‐section of 278 rural markets, we decompose the impact of the entry of new banks into resulting changes in per capita demand and the costs/profits of local banks in 1994 and 2004. The results support the view that local banking markets have become more competitive since the mid‐1990s.     

Chinese children’s attitudes towards television advertising: truthfulness and liking

This benchmarking study examines Chinese children.s perceived truthfulness of and liking for television advertising in three Chinese cities with different developmental levels of advertising. An in-person survey of 1758 children (ages 6 to 14) was conducted between December 2001 and March 2002 using a structured questionnaire. Results indicate that a majority of children perceive half of the television commercials to be true, although this varies by grade and geography. Children in Beijing perceived television commercials to be more trustworthy than did children in Nanjing and Chengdu. The percentage of children who perceive all commercials to be true declines consistently with grade in all three cities. There is a high proportion of first graders who perceive all commercials to be untrue. The basis for judgement varies predominantly by grade. Children in higher grades depend more on brand and user experience while children in lower grades rely mainly on authority (i.e. parents or teachers). A high proportion of first graders hold both a strong liking and disliking for commercials. These strong feelings towards advertising decreased with grade, being replaced by a marked increase in neutral or indifferent feelings. Gender and level of television viewing do not show a consistent impact on perceived truthfulness and liking for commercials. Perceived truthfulness of television advertising is related positively with liking for commercials.     

The evolution of syndicated loan markets

This paper provides a historical perspective on the development of the global syndicated loan market, where $2.6 trillion worth of funds were raised in 2004. The emergence of the Eurodollar market in the 1960s, the balance of payments problems of non-oil-exporting emerging countries in the 1970s, the Latin American financial crises and the US merger wave of the 1980s, and finally the competitive financial environment and the emergence of the secondary loan market during the 1990s are reviewed. These have been the most influential financial developments that shaped the syndicated loan markets in the last few decades.     

An examination of the relationship among consumer lifestyles,ethnocentrism, knowledge structures,attitudes and behavioural tendencies: a comparative study in two CIS states

The objective of this study is to investigate ethnocentric and/or regiocentric behaviour of Azeri and Kyrgyz consumers. In particular, the study focuses on how ethnocentrism explains consumers' attitudes, intentions and actual purchasing behaviour towards products from major sourcing countries. Data for the study were collected through personal interviews in four districts of Greater Bishkek: the capital city of Kyrgyz Republic, and Baku, the capital city of Azerbaijan. Survey findings lend greater support to earlier studies conducted in the USA, Western and Eastern Europe and Japan. Non-ethnocentric Kyrgyz and Azeri consumers have significantly more favourable belief structures, attitudes, intentions and the resultant purchasing behaviour regarding imported products compared to their ethnocentric Azeri and Kyrgyz consumer counterparts. The findings of the study offer important research, public policy and managerial implications for companies, government agencies and international donor agencies alike who are either operating in the region or contemplating an entry in the future. Foreign companies may use pan-regional marketing strategies and may be able to standardise their products and marketing strategies in the region, since consumers have identical and/or very similar use behaviour and uses for the products and services.