The national innovation policy effect according to firm location

The regional nature of innovation and innovation policy was investigated. The aim of this study was to determine whether the specific economic and institutional conditions of a region had an influence on the results of a national policy intended to support entrepreneurial innovation. The analysis compared the effect of the national R&D subsidies on the innovation effort of firms located in central regions, which concentrate an important percentage of the national innovation activity, together with those firms located in periphery regions. Significant regional differences were detected with regard to the national R&D subsidies’ effect and distribution. The central regions manifested a higher subsidy effect compared to the periphery regions. The results of this study have allowed us to conclude that the region plays an important differentiating role in connection with the final result of the innovation policy aimed at the entire national territory. Therefore, this study recommends including the geographical location of the firm in future evaluations.     

基于“退火下山法”的大规模网络路由算法

文章结合模拟退火算法与下山法各自的优点,得到了一种高效、收敛的启发式算法:模拟退火下山算法,它是针对大规模网络路由的复杂性而提出了的一种有效快速的算法。作为一种启发式算法,它本身有一定的优缺点,它可以保证得到全局最优解,但是如果要更快速的收敛于最优解的话,则对初始路径的设定有一定要求。     

数据挖掘在静电放电防护理论中的应用

研究了应用遗传算法进行关联规则挖掘的方法,提出了对遗传算法中适应度函数的构造、数据的编码等的改进方案,将改进的自适应P_c,P_m算法应用到遗传算法中来,从而提高了算法的效率；将其应用到静电放电防护的实验中去,取得了良好效果。     

Fairness, price stickiness, and history dependence in decentralized trade

The paper investigates price formation in a decentralized market with random matching. Agents are assumed to have subdued social preferences: buyers, for example, prefer a lower price to a higher one but experience reduced utility increases below a reference price that serves as a common fairness benchmark. The strategic equilibrium reflects market fundamentals, but it is markedly less sensitive to the buyer–seller ratio near the fair price benchmark. Prices may be sticky around very different reference levels in markets with otherwise identical fundamentals. The implied history dependence turns out to be mitigated rather than exacerbated by friction.     

Direct causal mechanisms of profit: dominant paradigm of profit seeking

This paper develops the direct causal mechanisms of profit (DCMP) to meet the conditions/requirements normatively drawn from the conceptual, logical and methodological dimensions of profit seeking, direct causal mechanisms, holistic and non-egalitarian approach, and deductive inference, which holds the proximate causal mechanism between technological change and needs evolution at the macro-foundations, and the ultimate causal mechanism between needs-focused innovation and explicit needs at the micro-foundations. From DCMP it derives propositions about matching goodness of the proximate causal mechanism and adaptive goodness of the ultimate causal mechanism, verifies them with the experiences of the winners/losers, and finally concludes that DCMP can work as the dominant paradigm of profit seeking, the determinants of firm/business success, and a powerful theoretical and practical foundation/framework for business model design and innovation, asserting that DCMP explains profit as outcome/effect in a more robust/comprehensive/persuasive manner than the existing paradigms because DCMP always guarantees the genuine causality.     

Matching mechanisms and matching quality: Evidence from a top university in China

We compare competing college admission matching mechanisms that differ in preference submission timing (pre-exam, post-exam but pre-score, or post-score) and in matching procedure (Boston (BOS) and serial dictatorship (SD) matching). Pre-exam submission asks students to submit college preferences before entrance exam scores are known, whereas post-score (post-exam) submission removes (reduces) score uncertainties. Theoretical analyses show that although mechanisms with post-score submission or SD matching are ex-post fair and efficient, they are not so ex-ante. Instead, the mechanism with pre-exam submission and BOS matching can be more fair and efficient ex-ante. These hypotheses are supported by empirical test on data from a top school at a top-ranked Chinese university with identification based on temporal and provincial changes. We find that although students admitted under the pre-exam BOS mechanism have lower college entrance exam scores than students admitted through other mechanisms on average, they exhibit similar or even better college academic performance.     

绿色生态资源的规整性开发策略模型与算法求解

综合考虑绿色生态资源规模、技术创新、开发成本等不确定因素,对归属于不同存储路径的绿色生态资源开发顺序与开发时间进行规整性决策。构建了考虑满足开发优先级顺序与净现值最大化的前提的绿色生态资源开发模型。根据绿色生态资源开发的实际特点,构建了整数规划开采决策模型。基于异步次梯度法的拉格朗日松弛算法求解出稳态下绿色生态资源价格和产量的增长率,并对求解进行数值模拟与敏感性分析。研究表明,技术创新对绿色生态资源的规整性开发起到决定性作用。最终产品供给部门和资源开发部门的资源开发优先级约束、生产约束与资源开采净现值水平将显著影响绿色生态资源产量增长率。     

基于蚁群算法考虑路线安排的单配送中心选址

对一类要求考虑路线安排的单配送中心选址问题建立基于蚁群算法的选址模型,模型目标以配送中心建设费用与运输费用之和最小;同时构造模型的蚁群算法求解结构;最后初步应用证明了该模型解决此类问题的有效性,为单配送选址提供又一种方法。     

Labor market dynamics in urban China and the role of the state sector

This paper studies the effect of state-owned enterprises (SOEs) on the dynamics of the Chinese urban labor market. Using longitudinally matched monthly panel data, we document very low labor force dynamics in the state sector, which leads to a high long-term unemployment rate. We develop and estimate an equilibrium search and matching model with three differences between the state and non-state sectors: labor productivity, labor adjustment cost, and workers’ bargaining power. Counterfactual analysis shows that, among the three channels, reducing the bargaining power of state sector workers is most effective in reducing unemployment duration and unemployment rate.     

基于动态匹配视角创建新商业模式的思考--肇庆风华锂电公司转型升级研究

回顾广东省风华锂电公司发展历程,该企业不仅是全国最早进入锂电池行业的企业之一,同时也是国内为数不多掌握正负极材料生产技术的企业,但随着近二十年的发展,企业不仅没有处在技术革新领域的前沿,而且与其他竞争对手的差距越来越大。为了破解企业生产经营困境,锂电公司以“动态匹配视角”重塑商业模式,转型升级取得成功。结合本轮广东省体制机制创新改革契机,锂电公司将抓住本次体制机制改革契机,企业外部,积极寻求战略合作者,优化股东结构,探索多样化的合作模式,不断谋求资本市场上的突破;企业内部,强化市场机制为导向,减少行政审批对企业造成的束缚,逐步开展改制工作,探索多形式的激励机制,不仅为锂电公司未来发展打下基础,也为实现锂电公司增值溢价做好铺垫。