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因果过度决定与认知层次分析
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作者 李安然 张志林 《科学.经济.社会》 2023年第5期59-70,共12页
因果过度决定是困扰着因果反事实理论的一个难题。通过澄清该难题的含义,陈述细粒度策略解决方案以及刘易斯对此方案的反驳,然后借助对思维经济原则的分析,指出因果过度决定难题导源于对思维经济性的过分追求,进而引出认知层次问题。认... 因果过度决定是困扰着因果反事实理论的一个难题。通过澄清该难题的含义,陈述细粒度策略解决方案以及刘易斯对此方案的反驳,然后借助对思维经济原则的分析,指出因果过度决定难题导源于对思维经济性的过分追求,进而引出认知层次问题。认知层次的确定应以所需解决的问题为导向,而不存在绝对的统一标准,人类认知也无须这样的标准。对因果过度决定难题典型案例的分析表明,虽然理性分析策略似乎可解决砸碎玻璃瓶之类的难题,但因忽视人脑的计算消耗而无法分析认知层次问题。比较而言,资源理性分析策略基于计算时间来测算大脑的计算消耗,从而约束一分到底的分层倾向,注重计算代价与认知效用之间的动态平衡,乃是优于简单理性分析策略的方案。 展开更多
关键词 因果过度决定 认知层次 思维经济原则 理性分析 资源理性分析
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Analysis on Cost and Profit in Farming Activity in Malaysia
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作者 Noraniza Yusoff 《Journal of Modern Accounting and Auditing》 2016年第4期183-207,共25页
There is an excessive dissimilarity between scholars in how to accumulate output costs. Worldwide farming advancement is concerned with yield enhancement instead of a holistic natural source management for food safety... There is an excessive dissimilarity between scholars in how to accumulate output costs. Worldwide farming advancement is concerned with yield enhancement instead of a holistic natural source management for food safety. Nevertheless, knowledge regarding the achievement of agriculture systems subject to natural and conventional management in tropical and subtropical areas is insufficient. Why do several farmers record less profit than other farmers? Cost in agriculture activity influences the volume of profit gained by farmers. The number of respondents was 53. Data analysis was made using linear regression analysis to achieve the objective. The scatter diagram manifested a positive connection in cost and profit in agriculture activity from 2009 to 2013. For each cost increase in 2009-2012, the model forecasts a rise of returns for every year. The rate of profit earned by farmers every year shifts considerably in relation to the rate of cost in agriculture activity. This study recommends common accounting principles practices that exercise bookkeeping and managerial accounting to enhance farmstead management and profit. Future research may be conducted on the use of compost fertilizer in increasing agricultural income. 展开更多
关键词 COST FARMING MALAYSIA PROFIT regression
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Inter-annual variation of streamflow,precipitation and evaporation in a small humid watershed(Chengcun Basin,China)
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作者 Mark AMO-BOATENG 李致家 管仪庆 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2014年第2期455-468,共14页
For sustainable water resource management,it is important to determine the relationship between streamfl ow and other variables that infl uence availability of water resources.However,many catchments do not have suffi... For sustainable water resource management,it is important to determine the relationship between streamfl ow and other variables that infl uence availability of water resources.However,many catchments do not have suffi cient data to allow for a more detailed study of these relationships.We faced a similar challenge in the Chengcun Basin(limited historical data: from 1986–1999); and therefore we used a new approach to overcome this.We found that,using nonparametric trend methods in conjunction with the climate elasticity analyses and the 2D visualization of hydrologic data,it is possible to assess the relationships between streamfl ow and other hydro-climatic variables.In the past,streamfl ow trends in the basin were more correlated with precipitation than with potential evapotranspiration(PET).In addition,there is a gradual shift in the hydrological regime of the catchment,which may affect the occurrence of available water resources and activities that depend on them.In addition,based on our climate sensitivity analyses,the streamfl ow is dependent and more sensitive to variations in precipitation than to PET(δQ=0.79δP+0.42δE; precipitation elasticity,ε P=1.32; PET elasticity,ε E=-2.10).Therefore pending more detailed studies,the use of our approach will provide a rapid means to assess the variation of water resources(streamfl ow)in a watershed.In the future,we hope to carry out related research in other watersheds and also perform a more detailed studies to improve upon the results of this study. 展开更多
关键词 TREND Mann-Kendall test climate elasticity Sen's slope streamflow 2D visualization hydrologic data
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