Futures basis,inventory and commodity price volatility: An empirical analysis

We employ a large dataset of physical inventory data on 21 different commodities for the period 1993–2011 to empirically analyze the behavior of commodity prices and their volatility as predicted by the theory of storage. We examine two main issues. First, we analyze the relationship between inventory and the shape of the forward curve. Low (high) inventory is associated with forward curves in backwardation (contango), as the theory of storage predicts. Second, we show that price volatility is a decreasing function of inventory for the majority of commodities in our sample. This effect is more pronounced in backwardated markets. Our findings are robust with respect to alternative inventory measures and over the recent commodity price boom.     

New development: The crisis and European local government reforms

This article highlights the main reform trajectories put in place in French, Italian, German and Portuguese local governments during the recent crisis and identifies a number of important trends: for example increasing centralization of decision-making powers away from local governments. The authors explain why local governments have an opportunity to use reforms during the crisis to strategically reposition their value proposition.     

Attachment orientations in business‐to‐business relationships

Attachment theory has produced an impressive body of evidence for explaining individual differences in personal relationship behavior. The current study examines whether attachment theory can be fruitfully extended to business‐to‐business relationships. Hypotheses about the impact of personal attachment orientations on key relationship constructs are developed and empirically tested in two business‐to‐business relationships. Customers who are securely attached in their personal relationships with their romantic partners experience higher levels of satisfaction, trust, and repurchase intent in their business‐to‐business relationships. In addition, an attachment scale that is specifically tailored for a business‐to‐business context is developed. Two dimensions of business attachment are empirically derived: secure business attachment measures the ability and willingness to rely on the business partner, and close business attachment measures the desire to develop personal bonds with a business partner or its employees. The two business attachment dimensions can be used to segment customers with respect to their intrinsic retainability and their preference for personal bonding with their business partners. © 2009 Wiley Periodicals, Inc.     

Utilization and productivity of the Duke physician's associate

The objectives of this study were as follows: (1) Formulate a theoretical model of the typical medical practice as a system for producing medical care, with particular attention to the role of middle-level health workers such as graduates of Duke University's Physician's Associate Program. (2) Develop a methodology for collecting data necessary to estimate the relevant parameters in the model, and to describe current patterns of utilization of Duke PA's. (3) Draw substantive conclusions, insofar as the model and data collection methodology permit, about the actual and potential productivity of Duke PA's.As of October 1971 Duke University had graduated 68 PA's from its Physician's Associate Program. Of these, 34 are employed as assistants in family practice or general medicine in a variety of private and institutional settings. Data were collected on eleven of these 34 PA's. No attempt was made to study the other 34 graduates engaged in clinical specialties, administration, or other functions. Neither was any attempt made to collect data on or draw inferences about the utilization and productivity of graduates of any other program such as the MEDEX Program.⁴     

Social roles, human capital, and the intrahousehold division of labor: evidence from Pakistan

Using detailed data from rural Pakistan, this paper investigateswhether human capital, learning-by-doing, gender, and familystatus affect the division of labor within households. Resultssuggest the presence of returns to individual specializationin all farm, non-farm, and home based activities. The intrahouseholddivision of labor is influenced by comparative advantage basedon human capital and by long-lasting returns to learning-by-doing,but we also find evidence of a separate effect of gender andfamily status. Households seem to operate as hierarchies withsexually segregated spheres of activity. The head of householdand his or her spouse provide most of the labor within theirrespective spheres of influence; other members work less. Whenpresent in the household, daughters-in-law work systematicallyharder than daughters of comparable age, height, and education.Other findings of interest are that there are increasing returnsto scale in most household chores, that larger households workmore off farm, and that better educated individuals enjoy moreleisure.     

Alcohol abuse and liver enzymes (AALE): results of an intercompany study of mortality

Evaluation of applicants for life insurance who have elevations of their liver function tests or an increased probability of alcohol abuse has always been difficult for underwriters. This paper reports the results of an intercompany study in which the pooled mortality experience of a group of insureds with evidence of alcohol abuse, an adverse driving record or elevations of the liver transaminases or gamma-glutamyl transferase is summarized.     

Food in sub-Saharan Africa : Trends and policy challenges for the 1990s

The food situation in Africa can be expected to become increasingly serious as the end of the century approaches. The gap between domestic supply and food needs in rapidly widening. Yield-increasing technology becomes essential in view of land scarcity in high-potential areas and sustainability problems in marginal zones. The concern of governments for food self-sufficiency, however, must not divert attention from the primary objective of household food security, which is essentially a question of households' real income. Accelerated rural growth and improved rural health and sanitation services accessible to the poor are central elements for household food security improvement.     

Competition and productivity growth in South Africa

This article shows that mark‐ups are significantly higher in South African manufacturing industries than they are in corresponding industries worldwide. We test for the consequences of this low‐level of product market competition on productivity growth. The results of the paper are that high mark‐ups have a large negative impact on productivity growth in South African manufacturing industry. Our results are robust to three different data sources, two alternative measures of productivity growth, and three distinct measures of the mark‐up. Controlling for potential endogeneity of regressors does not eliminate the findings.