7,099 research outputs found
Adoption and diffusion of no tillage practices in Southern Spain olive groves
No full textThis paper analyses the process of adoption of no tillage in South-eastern Spain’s olive groves. Olive tree groves in South-eastern Spain’s mountainous areas are subject to a high risk of soil erosion, which is the main environmental problem for this crop, and have to incur in high costs of soil conservation. This results in a greater difficulty to comply with the practices required to benefit from both the single payment and agri-environmental schemes. In many high-steeped areas, farmers have opted for non-tillage practices as an alternative to other conservation practices. Using our own data from a survey carried out in 2006 among 215 olive tree farmers from the Granada Province in Southern Spain regarding the adoption of soil conservation and management practices, we model the diffusion process of no tillage practices using several specifications (logistic, Gompertz and exponential). We also estimate an ordered probit model to analyse which socio-economic and institutional factors determine the adoption of no tillage. Our results show that 90% of farmers in the area of study perform no tillage with either localized (21%) or no localized (69%) application of weedicides. The diffusion process of no tillage has been very intense since the middle nineties, and has been based on the interactions among farmers in the area of study rather than in external factors such as EU policies or extension services. Among other relevant factors that positively affect the adoption of no tillage practices in general, such as farm size and irrigation, the probability of a farmer adopting no tillage with non-localized application of weedicides increases when there is a relative that will continue with the farming activity, what causes the farmer to incorporate long term effects in his farming decisions, when the farmer is only a manager or when he bought the farm rather than inherited it (i.e. on more professionalized farms), and with his educational level. These results confirm some findings from previous studies in other nearby areas.Spanish olive groves, soil erosion, no tillage, Crop Production/Industries, Land Economics/Use,
Groves Mechanism vs. Profit Sharing for Corporate Budgeting - An Experimental Analysis with Preplay Communication
No full textThis paper experimentally explores the efficiency of the Groves mechanism and a profit sharing scheme in a corporate budgeting context. Specifically, it examines the effects of anonymous communication on both incentive schemes. The results show that although the Groves mechanism is analytically superior to the profit sharing scheme, the latter turns out to be advantageous for headquarters in our experiment. This is essentially due to the effects of communication on both incentive schemes. Under the profit sharing scheme, communication improves coordination and reduces inefficient resource allocation. Under the Groves mechanism, however, it leads to stable collusion strategies of the participants, and thus increases compensation costs.
Groves, G C, 428642
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/389325Surname: GROVES. Given Name(s) or Initials: G C. Military Service Number or Last Known Location: 428642. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 56310.213094
Item: [2016.0049.21618] "Groves, G C, 428642
C. Groves Haines (ed.). Africa Today
No full textServoise René. C. Groves Haines (ed.). Africa Today. In: Politique étrangère, n°1 - 1958 - 23ᵉannée. pp. 96-98
Bertha Groves, Ignacio, 1978
No full textBlack & white photograph of Ute Native elder Bertha Groves in her home in Ignacio, CO. She stands next to a taxidermied buffalo head
Three-dimensional spectral measurements of paint samples using optical coherence tomography
No full textIn this study, we describe a method for measuring the spectral reflectance of a paint layer at both the surface and in the volume of the paint layers. We first present a fringes model which illustrates the possibilities for spectral reconstruction using a Short-Time-Fourier-Transform algorithm. We investigate the remaing percentage errors and identified that there is a strong fluctuation along the wavelength range of the spectrometer. Then, we demonstrate the validity of our approach experimentally by measuring the spectral reflectance of a paint layer using a custom-made visible light optical coherence tomography system. There, we reconstruct the spectral reflectance of a paint layer by probing the surface and a depth range below the surface. Finally, we show the importance to include a wavelength sensitive correction in the reconstruction for taking into account the spectral shape of the light in the reference path of the interferometer. This work is part of the Down To The Ground project, in which the results of the OCT inspection will be used directly by a consortium of technical art historians and conservators.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Structural Integrity & Composite
Kommunikation im Groves-Mechanismus – Ergebnisse eines Laborexperiments
No full textTheoretische Untersuchungen haben gezeigt, dass der Groves-Mechanismus als Anreizsystenn zur wahrheitsgemäßen Berichterstattung äußerst wünschenswerte Eigenschaften aufweist. So ergibt sich die wahrheitsgemäße Berichterstattung für alle Spieler als Gleichgewicht in dominanten Strategien. Offen ist jedoch, ob sich dieses Gleichgewicht auch unter realen Bedingungen zeigt und ob der Anreizmechanismus — wie von der Theorie vorhergesagt — manipulationsresistent ist. Diesen Fragen wird in einer experimentellen Studie nachgegangen. Dabei wird den Teilnehmern in einem von zwei Treatments die Möglichkeit zur anonymen Kommunikation gegeben. Die Ergebnisse zeigen, dass der Groves-Mechanismus in keinem der beiden Treatments zu wahrheitsgemäßer Berichterstattung führt. Während dies im Treatment ohne Kommunikation jedoch auf soziale Präferenzen bzw. Schwierigkeiten beim Verständnis des Anreizmechanismus zurückgeführt werden kann, zeigen sich im Kommunikationstreatment stabile Manipulationsstrategien der Teilnehmer bis in die letzte Runde
Groves, Bettie H.
No full textRev. C. O. Groves - sonhttps://stars.library.ucf.edu/cfm-ch-memoranda-1915/1090/thumbnail.jp
Andalusian Demand for Non-Market Goods from Mountain Olive Groves
No full textAgricultural multifunctionality is the recognition of the joint exercise of economic, environmental and social functions by this sector. In order to make this concept operative for the design of public policies, it is necessary to estimate the social demand for such functions. The main objective of this article is to present an empirical application in this line. For this purpose we have taken the agricultural system of mountain olive groves in Andalusia (Southern Spain) at risk of abandonment after the decoupling of the EU subsidies as a case study. The economic valuation technique used is the Choice Experiment. According to the results, there is a different contribution of each attribute to the improvement of the Society level of utility. The main finding of this study is the identification of a social demand for public goods and services provided by the mountains olive groves. This support for agricultural multifunctionality is heterogeneous in its perception by the citizens and the valuation of the various attributes that the concept involves. Taking into account the impact of an overall improvement in the attribute levels and the socioeconomic characteristics of the respondents, the results suggest that women, people with higher education levels, urban citizens and families with more than three members are those who benefit most from the provision of public goods by agriculture. There is a different contribution of each attribute to the improvement of the Society level of utility. Thus, and taking into account its WTP for each attribute, keeping rural population in their villages and fighting soil erosion (with 22.61 and 21.55/individual/year, respectively) seem to be the most valued functions of the mountain olive groves by Andalusian citizens. It follows the improvement of the visual quality of the rural landscapes (12.20/individual/year) and the reduction of food residuals (7.14/individual/year). Finally, the results of this study support the new orientation of the CAP which makes decoupled payments on compliance with a range of environmental, food safety, animal and plant health and animal welfare standards, as a result of which, the cross-compliance requirement of the EU agricultural support will, presumably, promote a net increase in social welfare. Yet, according to the results of this research, some efforts should be done to allow cross-compliance to reinforce the objectives of keeping rural population in rural areas and the improvement of the landscape.Agricultural multifunctionality, Economic valuation, Choice experiment, Olive groves, Andalusia (Spain), Crop Production/Industries, Demand and Price Analysis, Q11, Q18, Q24,
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