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Consumer Preference and Willingness to Pay for an Officially Certified Quality Label: Implications for Traditional Food Producers
Padilla,Carlos; Villalobos,Pablo; Spiller,Achim; Henry,Guy;
Agricultura Técnica , 2007, DOI: 10.4067/S0365-28072007000300009
Abstract: a study was carried out in chile in order to evaluate consumer preference and willingness to pay for a certified quality label on traditional food products, employing a conjoint analysis method. a total of 234 individuals were interviewed in two chilean cities, santiago and talca. a homemade blackberry (rubus ulmifolius) marmalade and three product attributes with their respective levels were chosen (price, quality label and jar appearance). nine hypothetical product concepts were generated applying an orthogonal design. respondents were asked to rank the product concepts according to their preferences. the results obtained through the conjoint model suggest that an ?officially certified quality label? is the most important attribute influencing consumer choice behavior. likewise, a positive willingness to pay for such an attribute is observed. as a differentiation and quality management tool, an official certified quality label seems to be a good alternative to improve the situation and market opportunities for small farmers. it is important to notice that this study corresponds to the first empirical approach carried out in chile, which relates the conjoint analysis method with consumer preferences for this kind of food product
Consumer Preference and Willingness to Pay for an Officially Certified Quality Label: Implications for Traditional Food Producers Preferencia y Disposición del Consumidor a Pagar por un Sello de Calidad Certificada: Implicancias para Productores de Alimentos de Origen Campesino
Carlos Padilla,Pablo Villalobos,Achim Spiller,Guy Henry
Agricultura Técnica , 2007,
Abstract: A study was carried out in Chile in order to evaluate consumer preference and willingness to pay for a certified quality label on traditional food products, employing a conjoint analysis method. A total of 234 individuals were interviewed in two Chilean cities, Santiago and Talca. A homemade blackberry (Rubus ulmifolius) marmalade and three product attributes with their respective levels were chosen (price, quality label and jar appearance). Nine hypothetical product concepts were generated applying an orthogonal design. Respondents were asked to rank the product concepts according to their preferences. The results obtained through the conjoint model suggest that an “officially certified quality label” is the most important attribute influencing consumer choice behavior. Likewise, a positive willingness to pay for such an attribute is observed. As a differentiation and quality management tool, an official certified quality label seems to be a good alternative to improve the situation and market opportunities for small farmers. It is important to notice that this study corresponds to the first empirical approach carried out in Chile, which relates the conjoint analysis method with consumer preferences for this kind of food product Con el objetivo de evaluar la preferencia y disposición a pagar del consumidor chileno por un sello de calidad certificada usado en productos alimenticios de origen campesino, se llevó a cabo un estudio empleando la metodología de análisis conjunto. Un total de 234 consumidores de las ciudades de Talca y Santiago fueron consultados, respondiendo un cuestionario especialmente dise ado. Como producto base para el análisis conjunto se utilizó una mermelada de mora (Rubus ulmifolius) de elaboración artesanal. Además, un conjunto de tres atributos (precio, sello de calidad y presentación del envase) fueron considerados en la evaluación. Mediante un dise o ortogonal, se definieron nueve conceptos de productos hipotéticos, los cuales fueron ordenados por los consumidores de acuerdo a sus preferencias. Los resultados obtenidos a través del modelo conjunto se alan que un “sello de calidad certificada” es el atributo más importante que domina el comportamiento de elección de los consumidores, observándose una positiva disposición a pagar por esta característica. Como herramienta de gestión de calidad y diferenciación, un sello de calidad certificada parece ser una buena alternativa para mejorar las condiciones y oportunidades de mercado de los productores de alimentos respaldados por una tradición campesina. Cabe destacar que ésta es la
Free Secondary Education and the Changing Roles of the Heads of Public Schools in Tanzania: Are They Ready for New Responsibilities?  [PDF]
Henry Godda
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.65001
Abstract:
This study investigated the management capacity of heads of public secondary schools in the implementation of Free Secondary Education (FSE) policy in Singida municipality. The study was descriptive research survey which employed both qualitative and quantitative research designs. Questionnaires and interviews were used to collect data from 200 teachers, 10 school heads and 5 municipal secondary education officers. The findings indicated that heads of public secondary schools in Singida municipality possessed managerial skills to run their schools effectively despite of being faced by several challenges, like inadequate funds to cater for some of the school needs, misconception by parents that FSE policy catered for all the fees and rapid increase of student enrollment. The findings further revealed that school heads use informal and formal coping strategies like community participation and informal peer coaching to manage the challenges of FSE.
Delivery Systems for the Direct Application of siRNAs to Induce RNA Interference (RNAi) In Vivo
Achim Aigner
Journal of Biomedicine and Biotechnology , 2006, DOI: 10.1155/jbb/2006/71659
Abstract: RNA interference (RNAi) is a powerful method for specific gene silencing which may also lead to promising novel therapeutic strategies. It is mediated through small interfering RNAs (siRNAs) which sequence-specifically trigger the cleavage and subsequent degradation of their target mRNA. One critical factor is the ability to deliver intact siRNAs into target cells/organs in vivo. This review highlights the mechanism of RNAi and the guidelines for the design of optimal siRNAs. It gives an overview of studies based on the systemic or local application of naked siRNAs or the use of various nonviral siRNA delivery systems. One promising avenue is the the complexation of siRNAs with the polyethylenimine (PEI), which efficiently stabilizes siRNAs and, upon systemic administration, leads to the delivery of the intact siRNAs into different organs. The antitumorigenic effects of PEI/siRNA-mediated in vivo gene-targeting of tumor-relevant proteins like in mouse tumor xenograft models are described.
Inhomogeneous condensates in the parity doublet model
Heinz, Achim
High Energy Physics - Phenomenology , 2013,
Abstract: Within the parity doublet model coupled to the linear sigma model including vector mesons it is possible to describe vacuum properties of the low energy mesons and to achieve nuclear saturation at nonzero density. Motivated by recent studies we investigate the emergence of inhomogeneous condensation in the parity doublet model. As a first step the chiral density wave (CDW) is con- sidered, which allows for a straightforward investigation of inhomogeneous condensation. As a result it is still possible to have a homogeneous ground state of nuclear matter, but at larger baryon chemical potential the CDW is favored with respect to the homogeneous phase.
Simple Systems - Complex Capacities. Integrative Processes of Computational Morphogenesis in Architecture
Achim Menges
Techne : Journal of Technology for Architecture and Environment , 2011,
Abstract: The complexity of the cultural, social, economical and particularly ecological context in which architecture is practised today necessitates design strategies and tactics that achieve a high level of integration of seemingly opposed demands and criteria within the material and construction systems we design. One possibility of unfolding novel synergies in such extreme conditions is to utilize the capacity of computers in the design process in an alternative way, one that foregrounds and instrumentalizes the innate capacities of materials, manufacturing and construction processes rather than merely elaborating form in the digital realm. The computational approach that will be presented here questions the nature of current design processes, but it is not a call for the replacement of the architect by computer driven design. Rather, under this approach, architects, instead of creating exuberant shapes subsequently rationalised for constructability and superimposed functions, are able to define specific material and construction systems by the combined logics of formation and materialisation encoded in generative processes of computational morphogenesis.
Review Essay: Die Erziehung des Menschengeschlechts durch Sozialforschung Review Essay: Qualitative Research for the Education of Mankind Ensayo: Investigación cualitativa para la educación de la humanidad
Achim Seiffarth
Forum : Qualitative Social Research , 2003,
Abstract: Im Bereich des Fremdsprachenunterrichts hat Qualitative Sozialforschung bis heute keinen leichten Stand. Lange Zeit hat die Ansicht vorgeherrscht, Ergebnisse der einen oder anderen Linguistik und aus einer rein quantitativ verfahrenden Psychologie genügten, um die in Lehrpl nen und neuerdings durch "European Frameworks" verbindlich gemachte Methode, zugeh rige Inhalte und Bewertungskriterien "wissenschaftlich zu begründen". Der vorliegende Sammelband von MüLLER-HARTMANN und SCHOCKER-V.DITFURTH stellt einen Versuch dar, verschiedene theoretische und methodische Entwicklungen qualitativer Ausrichtung im Bereich darzustellen. Das geschieht vor allem in der praktischen Absicht, Lehrer und Lehrerinnen mit verschiedenen M glichkeiten der qualitativen Erforschung von Unterrichts- und Lernprozessen bekannt zu machen und zu eigenen Untersuchungen anzuregen. Zudem dokumentiert der Sammelband eine gedankliche Auseinandersetzung mit qualitativer Forschung, bei der in konzentrierter Form eine jahrzehntelange Diskussion nachgeholt wird. Dabei wird die Mehrdeutigkeit qualitativer Forschungsverfahren deutlich. Einerseits fügt sich, wer die verschriftlichte Rede eines selbstst ndigen und verantwortlichen Subjekts zu seinem Gegenstand erkl rt, in ein alteurop isches Erziehungsprojekt ein, welches mitunter Züge pietistischer Gefühlskultur, dann wieder den Charakter einer umfassenden Kontrolle des Subjekts annimmt. Andererseits besteht der Anspruch vieler qualitativer Forschungsans tze fort, offensichtliche Asymmetrien der Kommunikation zu überwinden. Beides l sst sich an den Beitr gen des rezensierten Bandes gut beobachten. URN: urn:nbn:de:0114-fqs0302227 For quite a long time, the "scientific foundation" of foreign language teaching methods, of school curricula, and of "European Frameworks" seemed to be granted by quantitative psychological studies in conjunction with one or the other linguistic theory. Alternative approaches to the study of second and third language learning used to be considered illegitimate. In the last ten or fifteen years, this attitude has been slowly changing, possibly as a consequence of the "intercultural turn." The present collection of essays on the use of qualitative methods in theory and practice of foreign language teaching (edited by MüLLER-HARTMANN and SCHOCKER-V.DITFURTH) provides the reader with a panorama of qualitative research approaches in the field. All of the contributions deal extensively with epistemological and technical questions that came up in the context of scholarly inquiry undertaken by the authors themselves. The editors'
Review Essay: Verschwinden kann alles. Der Soziologe bleibt Review Essay: Everything May Disappear—The Sociologist Will Remain Ensayo: Todo puede desaparecer. El sociologo queda
Achim Seiffarth
Forum : Qualitative Social Research , 2001,
Abstract: URN: urn:nbn:de:0114-fqs0102150 URN: urn:nbn:de:0114-fqs0102150 URN: urn:nbn:de:0114-fqs0102150
Sammelbesprechung: Medien, schwarz auf wei Collective Review: Media, Black on White Rese a colectiva: Medios en blanco y negro
Achim Seiffarth
Forum : Qualitative Social Research , 2002,
Abstract: Ein Lehrbuch ist nicht notwendiger Weise etwas zum Lesen. Band I von BONFADELLIs "Medienwirkungsforschung" wird immer dann hilfreich sein, wenn wir uns mit einzelnen Theorien aus dem Lager der empirisch (quantitativ) verfahrenden Medien-Theorie vertraut machen wollen. Als Gesamtdarstellung hingegen verweigert das Werk Leserinnen und Lesern linearen Fortgang und Einheit der Erz hlung. Kapitel nach Kapitel führt aus dem Nichts heraus, ins Nichts zurück. Vielleicht stellt gerade diese Erz hlweise eine Gestalt erwünschter Wissenschaft dar. Band II behandelt verschiedene Bereiche bezahlter Auftragsforschung. Begrifflich auf wissenschaftsexterne Vorgaben festgelegt, g ben die zitierten Arbeiten Anlass zur Kritik. Zugleich ist es aufschlussreich, wie die Medien selbst bei der Wirkungsforschung aus dem Blick geraten, zugunsten einer bilderlosen Wahrheit, die weder Zeit noch Raum kennt. URN: urn:nbn:de:0114-fqs0204127 There is a difference between ordinary scientific essays and introductory text books. While we may (and usually do) just scan the contents of the first, we are supposed to read the latter from the first to the last page. If the text follows the history of scientific thought, it may thus seem reasonable to expect a narrative structure similar to the one of bourgeois novel. The text should, in other words, show some kind of plot, linking a poor beginning to a better end. According to this "frame," the end of the story should be able to justify preceding intrigues, torments and struggles as well as the reader's continuous effort to understand what it all was about. As a matter of fact, BONFADELLIs book (volume I) about "Theories and Fundamentals for Analyzing the Effects of Mass Media," though ordered chronologically, is very far from that kind of narrative and might more adequately be compared to postmodern literature. In each chapter of his book, the author presents theoretical approaches to "The Effects of Mass Media," from ALLPORT and LARZARSFELD to the most recent quantitative research efforts in the field. The reader will not get, however, an idea of "what it all was about." The author accurately eliminates any reference to history—that is, about personal, political and theoretical contexts of the theories he is writing about. He even destroys the object of his study, quoting theories about "effects" on "behavior," naming scientists that seek for "effects on social action," or "effects through social action," for "constructions" or studies on "interaction with media." BONFADELLI certainly does name them all, but he does not make any effort to fit
Review Essay: Lacan, per Boten Review Essay: Lacan, via Messenger Ensayo: Lacan interpretado por un mensajero
Achim Seiffarth
Forum : Qualitative Social Research , 2006,
Abstract: Was LACAN genau gesagt hat, steht nicht fest. Sein Werk liegt in autorisierten, aber problematischen, und in kritischen, aber nicht legitimierten Fassungen vor. Des Meisters "wahre Worte" sind nicht zug nglich; wer etwas davon wissen will, sieht sich auf Boten verwiesen, auf Wirkungen, durch Weisung oder Lektüre Angesto enes. Der Sammelband von THOLEN, SCHMITZ und RIEPE vereinigt Texte aus verschiedensten Bereichen, in denen mit Hilfe LACANschen Denkens gearbeitet wird: die Themen reichen von Lese-Rechtschreibschw che über juristische Fragen der Todesdefinition, über KAFKA- und H LDERLIN-Deutungen zur Filmtheorie und zur Geschichte der Psychologie. Das ist zu viel für einen Sammelband akademischen Zuschnitts, aber deshalb gerade das, was so etwas wie einen LACANschen Raum zu erschlie en hilft; es führt über sozialwissenschaftliche "Abteilungen" hinaus und h lt sich im lichten Gel nde des Kahlschlags nicht auf. Wer das Buch gelesen hat, wird nicht mehr der- oder dieselbe sein – leicht korrigiert, s he dieses LACANsche Versprechen im vorliegenden Falle etwa so aus: Leser und Leserinnen werden ihre Zeit nicht vertan haben. Wie kaum anders m glich, stehen in einigen Beitr gen zum rezensierten Werk Schul- und Begriffsfragen im Mittelpunkt: Versuche der Selbstvergewisserung, rezeptions- und übersetzungsbezogene überlegungen und Kritik. Doch ist die Mehrzahl der Aufs tze von allgemeinem und kulturwissenschaftlichem Interesse; übrigens kommt bei Er rterungen zum Borrom ischen Knoten auch der Spieltrieb nicht zu kurz. Schw cher fallen drei von vier Arbeiten zur LACAN-Rezeption in europ ischen L ndern aus; aber an diesen eher harmonieorientierten Texten ist immer noch interessant, was nicht zur Sprache kommt. In einem eigenen Rückblick auf die italienische LACAN-Rezeption will ich im Gegenzug konflikthaltige Tendenzen der Rezeption unterstreichen. URN: urn:nbn:de:0114-fqs0603156 We'll never know what LACAN really said. The various editions of his works are only partly authorized by LACAN himself, and the few critical editions are not among those that are. Anyone who wants to learn about the Master's thought has to study influences, transmissions, and the trajectories of words and texts ascribed to LACAN. The contributors to this volume by THOLEN, SCHMITZ and RIEPE focus on the three themes nominated in the book's title. Some primarily discuss the role of transfer in psychoanalysis, others critically examine German translations of the Master's texts, and a third group studies the emergence of a psychoanalytic tradition. We might affirm that all the articles represe
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