内蒙古额尔古纳市俄罗斯族经济和社会发展调查报告

俄罗斯族是我国人口较少的民族之一,在大兴安岭北麓,额尔古纳河右岸与俄罗斯隔河相望的内蒙古额尔古纳市,有我国惟一的俄罗斯民族乡:恩和俄罗斯民族乡。目前,额尔古纳市有俄罗斯族人口2124人。其中贫困户135户,计468人。西部大开发和国家民委的“兴边富民行动”为边境旗县创造了大好机遇,额尔古纳市充分发挥俄罗斯族的人缘地缘优势,根据俄罗斯族及华俄后裔的特点,积极实现“富民、兴边、强国、睦邻”之发展战略。     

作为物的身体和作为疾病的疯癫--读《疯癫与文明》

一在《疯癫与文明》一书中,福柯(MichelFoucault)用考古学的方法回顾了自中世纪以来围绕在疯癫之上的意象的变化。按照被人们普遍接受的疯癫经验的不同,这一时期又可以划分为三个阶段:中世纪末期至文艺复兴(15至16世纪)、古典时期(17至纪)、19至20世纪。在中世纪和文艺复兴时期     

论民族经济学的学科地位与作用

民族经济学于1979年创建,适应了中国多民族国家的国情与社会主义现代化建设需要,具有民族学与经济学的双重学科归属.这门由中国人自己创建的经济学分支学科,在学科理论建设、学术成果积累与专业人才培养方面取得了巨大成就.并通过不可取代的学科地位与鲜明的应用性特征,展现出民族经济学的发展前景.     

元代回回人的宗教制度与伊斯兰教法

本文研究了元代回回社会中的宗教制度和伊斯兰教法。作者认为,元代回回社会中存在着官方认可的管理者和更小的民间宗教事务管理者两套系统。伊斯兰教法约束了回回人的行为规范,并且对元代多元法律文化的形成产生了影响。在多元文化的发展过程中,“回回法”同“汉法”及“蒙古法”有一个冲突和融合的过程。     

构建财政民主有效治理机制探析——基于佛山地方实践研究

财政民主化是中国未来财政制度改革乃至社会经济与政治发展无法回避的重要主题,但在实践中正面临着治理有效性的挑战。广东省佛山市近年来在财政民主化方面进行了创新性的探索,取得了较好的治理绩效。其原因在于建立了绩效管理与协商治理相结合的机制体系,使得财政民主的价值合法性和治理有效性得到了有机统一。在实践基础上,进一步理解财政民主与治理绩效关系的内在机理及创新之处,将有助于从理论和实践两个层面推动财政民主向更广更深层次发展。     

Inventory‐Based Dynamic Pricing with Costly Price Adjustment

We study an average‐cost stochastic inventory control problem in which the firm can replenish inventory and adjust the price at anytime. We establish the optimality to change the price from low to high in each replenishment cycle as inventory is depleted. With costly price adjustment, scale economies of inventory replenishment are reflected in the cycle time instead of lot size—An increased fixed ordering cost leads to an extended replenishment cycle but does not necessarily increase the order quantity. A reduced marginal cost of ordering calls for an increased order quantity, as well as speeding up product selling within a cycle. We derive useful properties of the profit function that allows for reducing computational complexity of the problem. For systems requiring short replenishment cycles, the optimal solution can be easily computed by applying these properties. For systems requiring long replenishment cycles, we further consider a relaxed problem that is computational tractable. Under this relaxation, the sum of fixed ordering cost and price adjustment cost is equal to (greater than, less than) the total inventory holding cost within a replenishment cycle when the inventory holding cost is linear (convex, concave) in the stock level. Moreover, under the optimal solution, the time‐average profit is the same across all price segments when the inventory holding cost is accounted properly. Through a numerical study, we demonstrate that inventory‐based dynamic pricing can lead to significant profit improvement compared with static pricing and limited price adjustment can yield a benefit that is close to unlimited price adjustment. To be able to enjoy the benefit of dynamic pricing, however, it is important to appropriately choose inventory levels at which the price is revised.     

Implementing Monte Carlo tests with p-value buckets

Software packages usually report the results of statistical tests using p-values. Users often interpret these values by comparing them with standard thresholds, for example, 0.1, 1, and 5%, which is sometimes reinforced by a star rating (***, **, and *, respectively). We consider an arbitrary statistical test whose p-value p is not available explicitly, but can be approximated by Monte Carlo samples, for example, by bootstrap or permutation tests. The standard implementation of such tests usually draws a fixed number of samples to approximate p. However, the probability that the exact and the approximated p-value lie on different sides of a threshold (the resampling risk) can be high, particularly for p-values close to a threshold. We present a method to overcome this. We consider a finite set of user-specified intervals that cover [0, 1] and that can be overlapping. We call these p-value buckets. We present algorithms that, with arbitrarily high probability, return a p-value bucket containing p. We prove that for both a bounded resampling risk and a finite runtime, overlapping buckets need to be employed, and that our methods both bound the resampling risk and guarantee a finite runtime for such overlapping buckets. To interpret decisions with overlapping buckets, we propose an extension of the star rating system. We demonstrate that our methods are suitable for use in standard software, including for low p-value thresholds occurring in multiple testing settings, and that they can be computationally more efficient than standard implementations.     

“一带一路”倡议与相关国家人员流动性

“一带一路”倡议对沿线国家的社会经济发展的各个方面都可能产生重要影响,其中人员流动是一个基础却极为重要的课题.本文采集了东南亚与南亚地区参与“一带一路”建设国家中上百万真实的公开简历数据,并通过对其进行文本分析来重构该地区人员流动历史的面板大数据.在此基础上,本文实证检验了“一带一路”对沿线国家人员流动性的影响.结果表明,“一带一路”及相关投资项目的实施显著提高了沿线国家的人员流动性水平.同时,本文也利用准自然实验的方式,运用倾向得分匹配——双重差分法(PSM-DID)进一步验证了主要结论.本文的结论有助于增进我们对于“一带一路”的重要意义与国际影响的实证理解.同时,本文对线上简历大数据的运用也为未来的相关研究提供了新的思路.     

基于微信平台艺术品拍卖的对策与建议

近年来,艺术品的微信拍卖逐渐成为人们热议的一个话题。2014年3月,“艺麦微拍”推出的朱新建的《美人图》以16.1万元的价格成交,创下微信平台拍卖艺术品的最高纪录。随着中国新媒体发展进一步呈现移动化、融合化和社会化加速的态势,微信拍卖的群体也在迅速扩大。一方面,微拍的现象越来越普遍,另一方面,作为一种新型的拍卖方式也饱受人们争议。由此探讨了艺术品微信拍卖的优势和存在的一些问题,在此基础之上结合实际情况提出了一些具体的对策与建议。     

汇改后中国外汇市场与资本市场联动效应——基于集合经验模态分解法

以投资者预期收益变动逻辑起点,构建在不同预期收益下外汇市场与资本市场的联动机制理论模型,进而将2005-2014年按金融市场改革历程划分为4个阶段,通过集合经验模态分解法对中国外汇市场与资本市场的数据进行分解,过滤掉代表资本价格随机波动的短周期分量,提取最具代表联动性的长周期趋势分量。采用VAR-GARCH-BEKK模型对4个阶段两个市场的均值溢出效应和波动溢出效应进行分析,结果显示:受中国经济增长的方式以及外汇管制制度影响,不同阶段两个市场间的溢出效应呈现出不同的特点,虽然总体来看联动强度有一定程度的加强,但是两个市场间"资金价格"传导机制的脆弱性并未获得实质性的改变。因此,只有推进汇率市场化,循序渐进的加快资本项目可兑换,完善人民币汇率形成机制,才能够不断提高货币政策调控的主动性和有效性性,维护国家利益。