针对物流的交通需求管理研究探讨

本文简要介绍了国内外交通需求管理的研究状况,阐述了在物流领域实施交通需求管理的意义和特征,提出了一些针对物流的交通需求管理策略,对我国在物流领域实施交通需求管理有一定的指导意义。     

A hybrid machine learning model for forecasting a billing period’s peak electric load days

Many models have been studied for forecasting the peak electric load, but studies focusing on forecasting peak electric load days for a billing period are scarce. This focus is highly relevant to consumers, as their electricity costs are determined based not only on total consumption, but also on the peak load required during a period. Forecasting these peak days accurately allows demand response actions to be planned and executed efficiently in order to mitigate these peaks and their associated costs. We propose a hybrid model based on ARIMA, logistic regression and artificial neural networks models. This hybrid model evaluates the individual results of these statistical and machine learning models in order to forecast whether a given day will be a peak load day for the billing period. The proposed model predicted 70% (40/57) of actual peak load days accurately and revealed potential savings of approximately USD $80,000 for an American university during a one-year testing period.     

会计人员心理与会计违规行为——一个基于治理会计违规行为的分析视角

本文运用管理心理学理论,对会计人员心理与会计违规行为之间的深层内涵进行了分析,揭示了会计违规行为是外部环境和会计人员主观心理相互作用的结果。并指出治理会计违规行为的方法是减轻外部环境给会计人员造成的心理压力及对其各种需要的威胁,同时,还要重视会计人员正确价值观的塑造和健康心理的培育。     

会计信息产品属性的经济学分析

会计信息本质是具有公共物品属性的商品。本文从对会计信息产品的分类出发,对会计信息产品的作用、价值补偿渠道、成本收益和供求市场进行了分析,揭示了公开资本市场上导致会计信息产品市场需求缺口的本质原因。     

我国城镇居民平均消费倾向与收入分配状况关系的实证研究

中国的有效需求不足现象近年来成为一个被普遍关注的问题,而居民消费需求不足更是成为关注的焦点。本文在前人研究的基础上,从标准的消费者预期效用最大化模型出发,推导出中国城镇居民的个体"短视"消费模型和总量消费模型;运用我国1985～2004年城镇居民消费、收入及其他相关数据,通过误差修正模型和对数线性模型分别对数据进行了计量分析,发现在我国现阶段,城镇居民收入分配差距的扩大引起了居民平均消费倾向的减小,且其长期影响尤为显著。在对计量结果进行分析的基础上,本文给出了若干政策建议。     

The Impact of Omitting Promotion Variables on Simulation Experiments

Using store-level scanner data, elasticity matrices are estimated using a twotiered demand system. Two basic models are estimated, one with promotion variables and one without. Differences between the estimates across the two models are statistically significant. However, when the elasticities are used as 'inputs' into several simulation exercises, there are only small differences in merger effects and patent damage estimates.The results suggest that the differences are not 'economically' significant.     

中国外汇储备适度规模与需求结构研究——基于修正的Agarwal模型

本文对Agarwal模型进行修正,并运用修正后的模型对中国1994--2010年的外汇储备适度规模进行了实证研究。研究结果表明,中国外汇储备的实际规模自2004年起超过适度规模;中国外汇储备的需求结构发生了很大变化,其中预防性需求已经占据绝对的主导地位,同时预防性需求中,用于维护外汇市场稳定的干预性储备已经成为其中的主导需求。     

An experimental approach to valuing new differentiated products

An experimental store was created to evaluate initial demand for locally produced and guaranteed tender steak products as a more realistic alternative to contingent valuation (CV) and dichotomous-choice experimental methods. Strengths of the approach are incentive compatibility, a realistic consumption set, and a familiar choice environment. Consumers selected among USDA Choice, premium quality, lean, guaranteed tender and locaily produced strip steaks. A double-hurdle count data model indicated initial willingness-to-pay (WTP) for locally produced steak comparable to prior CV results, but demand was highly elastic. Demand for premium quality steak crowded out demand for the guaranteed tender product, contrasting with prior dichotomous-choice experimental results.