Modern variety adoption and risk management in drought prone areas: insights from the sorghum farmers of eastern Ethiopia

Adoption rates of improved or modern varieties (MV) of sorghum in eastern Ethiopia are generally low. Although these MV may represent an effective means of coping with droughts, given their early maturing traits, landraces could prove to be more drought‐tolerant and better adapted to marginal production conditions. Whether MV adoption is a risk reducing technology is very much an empirical question which this article investigates using a unique dataset from eastern Ethiopia in a year of extreme weather conditions. Results show that risk‐factors coupled with access to markets and social capital drive farmers’ decisions to adopt MVs. On the one hand, it appears that farmers use MVs to mitigate moderate risks. On the other hand, farmers who have been most vulnerable to extreme weather events are less likely to use MVs suggesting that MV adoption does not necessarily represent an effective means of coping with drought. Finally, findings show that MV growers are more likely to be affected by sorghum failure once controlling for exogenous production factors.     

Preface

The paper examines the main issues surrounding distributional effects in the domains of natural resource management and land policies, agricultural technology and research policies, agricultural market and trade policies, and consumer‐oriented policies, including standards, subsidies, and labeling. Agriculture is drifting into an ever more drastic bifurcation at a global level and within many countries. Correcting that bifurcation will require large investments in rural areas and rural people, in institutions, and in information and biological technologies accessible by the poor in the world's smallholder sector. Large and growing national and international inequalities related to agriculture and rural areas threaten peace, growth, and sustainable development.     

The IB/ IHRM interface: Exploring the potential of intersectional theorizing

Although the core concepts underlying IB and IHRM provide a common lexicon and epistemology, this commonality is often more implicit than explicit. We highlight not only the common ground but also the lack of critical dialogue between the two fields. This paper asks: What can each field learn from the other? What do scholars from IB learn from IHRM and vice versa? We identify a possible agenda and concerns regarding theory building as a basis for dialogue between the two fields.     

Interpersonal similarity and knowledge sharing within multinational organizations

Previous research has established that interpersonal similarity can influence knowledge sharing in such a way that similar people are more likely to share knowledge than those who are dissimilar. We contribute to the literature by showing that in the MNC context, cultural and functional similarity can become more powerful sources of bias than more commonly assumed demographic characteristics such as gender or seniority. This may be driven by the salience of such boundaries in the MNC: while demographic characteristics are more broadly distributed, cultural and functional barriers create more defined and observable faultlines, often coinciding with unit boundaries. We further argue that it may not be similarity as such that matters but rather its positive impact on different dimensions of social capital, which mediate the relationship between similarity and knowledge sharing. These microfoundations of inter-unit knowledge exchange point to important theoretical and practical implications for international management.     

RESIDENTIAL PROPERTY PRICES IN A SUBMARKET OF SOUTH AFRICA: SEPARATING REAL RETURNS FROM ATTRIBUTE GROWTH

The South African residential housing market experienced high growth in the previous decade, in line with international trends. Traditional methods of documenting this trajectory use the average prices of only properties that are sold in given periods and regions. A critical assumption of these approaches is that houses remain homogenous across time and space. This paper constructs a micro‐level hedonic price index to account for changing attributes of heterogenous houses. It illustrates that returns may have been overstated, and that much of the growth recorded in this market is driven by attribute inflation, particularly in the high price segment.     

Testing structural equation models: the impact of error variances in the data generating process

Yet another paper on fit measures? To our knowledge, very few papers discuss how fit measures are affected by error variance in the Data Generating Process (DGP). The present paper deals with this. Based upon an extensive simulation study, this paper shows that the effects of increased error variance differ significantly for various fit measures. In addition to error variance the effects depend on sample size and severity of misspecification. The findings confirm the general notion that good fit as measured by the chi-square, RMSEA and GFI etc. does not necessarily mean that the model is correctly specified and reliable. One finding is that the chi square test may give support to misspecified models in situations with a high level of error variance in the DGP, for small sample sizes. Another finding is that the chi-square test looses power also for large sample sizes when the model is negligible misspecified. Other results include incremental fit indices as NFI and RFI which prove to be more informative indicators under these circumstances. At the end of the paper we formulate some guidelines for use of different fit measures.     

Über das Theorem von Tchebycheff

Abstract

Eine Grösse X hänge in der Weise vom Zufall ab, dass sie verschiedene Werte x ₁, x ₂, … XII annimmt, je nachdem das Ereignis E ₁, oder das Ereignis E ₂ oder … oder das Ereignis E _n eintritt, wofür die Wahrscheinlichkeiten p ₁, p ₂, … p _n bestehen sollen; p ₁ + p ₂ + … + p _n = 1. Mann nennt X eine von Zufall abhängige Grösse oder X eine variable Grösse mit dem Wertevorrat (x ₁, x ₂, … x _n), wobei jedem einzelnen dieser Werte eine bestimmte Wahrscheinlichkeit zukommt. Zwei Grössen X, Y mit den Individualwerten x ₁, x ₂, … x _n; y ₁, y ₂, … y _m heissen unabhängig von einander, wenn die Wahrscheinlichkeit p _i von x _i dieselbe bleibt, welches auch der Wert von Y sei, und wenn auch die Wahrscheinlichkeit q _p von y _p dieselbe bleibt, welchen Wert auch X annehmen möge.     

Creating and consuming experiences in retail store environments: Comparing retailer and consumer perspectives

This article investigates the substance of arguments about an experience-oriented economy and experience-seeking consumption in retailing. Employing a case study research approach (n=7) and the Critical Incident Technique (n=252), we show how retailers as well as consumers relate to in-store experiences. The results point out that retailers’ use ever more advanced techniques in order to create compelling in-store experiences to their consumers. In contrast, the depiction given by consumers reveals that their in-store experiences to a large extent are constituted by traditional values such as the behavior of the personnel, a satisfactory selection of products and a layout that facilitates the store visit.