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The goal of this paper is to identify farmers’ future in terms of the pesticide management of potato growing farmers in Vereda la Hoya (Boyacá, Colombia).To achieve this goal we applied the Future-Structured Mental Model Approach (Future-SMMA) and interviewed 10 farmers concerning their future perspectives and expectations to derive their future visions. Subsequently, 10 experts were interviewed about the feasibility and the consequences of farmers’ future visions.Applying the Future-SMMA, we analyzed farmers’ future visions and found that farmers take account of social and environmental threats and that their visions are optimistic. In addition we compared farmers’ and experts’ perceptions of external constraints on farmers’ future and discovered that the future visions of farmers and experts were inconsistent. Finally, we determined how farmers’ livelihood assets and self-perception influence the formation of farmers’ future visions and found that the more a person was able to differentiate his livelihood assets the more differentiated were the future visions of that person.In discussing our findings, we deduce that the inconsistency of future visions found is due to diverging attitudes towards future scenarios and differing opinions about who should take responsibility for the knowledge management of farmers. 相似文献
74.
Jing Jian Xiao Barbara O'Neill Janice M. Prochaska Claudia M. Kerbel Patricia Brennan Barbara J. Bristow 《International Journal of Consumer Studies》2004,28(1):55-65
MONEY 2000? is a successful consumer education programme that was implemented by Cooperative Extension personnel in over two dozen states of the USA between 1996 and 2002. One of the unique features of this programme is that it was based on the Transtheoretical Model of Change (TTM), a framework that has been widely used to study health‐related behaviour changes such as smoking cessation. This paper first describes how the MONEY 2000? programme was developed around major constructs contained within the TTM. Findings are reported from a survey conducted with participants in the first two states that delivered the programme. The findings suggest that several change processes used by MONEY 2000? participants are associated with specific stages of change. In addition, there may be differences in behavioural changes between participants who increased their savings and those who reduced their debts. 相似文献
75.
Claudia Meo 《Metroeconomica》2015,66(1):71-90
A proof of the existence of private core allocations is provided for an exchange economy ε where consumers and commodities are both infinite in number, supposing however that only finitely many types can be distinguished among traders. It is obtained passing through the Edgeworth equilibrium notion considered for a suitably associated discrete setting. For this setting a preliminary result—which is interesting in itself—is proved: in every discrete economy E with asymmetric information and unequal numbers of traders with the same characteristics there is a private core allocation which treats agents of the same type equally. 相似文献
76.
This paper analyzes the impacts of Italian government actions on the efficiency of 36 airports between 2001 and 2003. The changes have included privatization, enlargement of the services provided directly by airport management companies, through the modification of the concession agreements, and the creation of two hubs. The analysis, using the consolidated two-stage data envelopment analysis with bootstrapping, indicates that airports with a majority public holding are on average more efficient and the presence of two hubs is source of inefficiency. 相似文献
77.
We consider a continuous-time stochastic optimization problem with infinite horizon, linear dynamics, and cone constraints which includes as a particular case portfolio selection problems under transaction costs for models of stock and currency markets. Using an appropriate geometric formalism we show that the Bellman function is the unique viscosity solution of a HJB equation.Mathematics Subject Classification (1991):
60G44JEL Classification:
G13, G11This research was done at Munich University of Technology supported by a Mercator Guest Professorship of the German Science Foundation (Deutsche Forschungsgemeinschaft). The authors also express their thanks to Mark Davis, Steve Shreve, and Michael Taksar for useful discussions concerning the principle of dynamic programming. 相似文献
78.
Claudia P. Lopes Antonio M. Cerqueira Elisio Brandao 《现代会计与审计》2010,6(5):22-36,45
In this study the authors analyse the possible effect of firms' economic conditions and financial performance on accounting quality. Bradshaw, et al. (2004), Gelos & WEI (2005) stated that financial reporting quality is fundamental for investors and it affects international capital movements. Following Schipper & Vicent (2003), the authors estimated accounting quality by abnormal accruals and earnings persistence. The authors' contribution consists of investigating a huge number of firms from 17 European countries using unbalanced panel data. The authors found evidence that economic conditions affect accounting quality: big firms and those with high current earnings exhibit better financial information. These results are robust because they do not depend on the accounting quality proxy, even when the authors estimated regression with economical and financial factors alone or together. Financial performance does not seem to affect accounting quality. However, this relation is not linear because in high leveraged firms, the capital structure becomes determinant. 相似文献
79.
The paper aims to provide a systematic overview of the barriers and enablers that contribute to the success or failure of collaborative workplaces initiatives aimed at fostering innovation in service companies. The study is based on semi-structured interviews with innovation managers, human resource managers and facility department executives from a sample of multi-national service companies. Its primary focus is on the workplace initiatives carried out in their Spanish subsidiaries. The paper contributes to the extant research by identifying a conceptual model for collaborative workplaces and by providing a systematic overview of the related barriers and enablers. From the interviews, these factors were organized within a framework usable by practitioners for analysis. This paper is of interest to companies that aim to design collaborative workplace strategies to justify associated investments. It can also provide their managers with guidelines to lead the company in the transition toward new ways of working based on higher employee collaboration and flexibility. 相似文献
80.
The United States National Preparedness System has evolved significantly in the recent past. These changes have affected the system structures and goals for disaster response. At the same time, actors such as private businesses have become increasingly involved in disaster efforts. In this paper, we begin to fill the gap in the cross-sector literature regarding interactions that have systemic impacts by investigating how the simultaneous processes of systemic change and intensifying cross-sector interaction worked and interacted in the context of the preparedness system. We examine these inter-linkages through a qualitative study in the setting of Hurricane Sandy. Drawing from systems theory, we develop a grounded model that provides an explanation for the system change and highlights how cross-sector interaction relates to the changes observed in the system. 相似文献