全球价值链中代工企业转型盲区、知识搜寻与升级机制研究

从知识搜寻机制角度探讨了代工企业转型困境与能力刚性的认知根源。知识搜寻是代工企业重构自身知识结构的重要机制，然而代工企业在构建知识生成机制时面临来自全球价值链核心企业的抑制与知识搜寻内生冲突的双重锁定，形成了不对称的知识搜寻与能力生成结构，导致代工企业“转型盲区”与生存困境。为此，从知识搜寻方法、组织结构、激励机制与支持机制等维度，构建了企业平衡其内生矛盾和外部制约的知识搜寻与积累机制，以消除代工企业的“转型盲区”，推动代工企业的知识积累、重构与持续转型升级。     

Robust multivariate analysis for mixed-type data: Novel algorithm and its practical application in socio-economic research

We propose a novel method and algorithm for the analysis and clustering of mixed-type data using a hierarchical approach based on Forward Search. In our procedure, the identification of groups is based on the identification of similar trajectories and then linked to very intuitive two-dimensional maps. The proposed algorithm can use different measures for the calculation of distance in the case of mixed-type data, such as Gower’s metric and Related metric scaling. A key feature of our algorithm is its ability to discard redundant information from a given set of variables. The practical usefulness of the algorithm is illustrated through two applications of high relevance for empirical economic research. The first one focuses on comparing different indicators of environmental policy stringency in different countries. The second one applies our procedure to identify clusters of countries based on information regarding their institutional characteristics.     

The German labor market during the Great Recession: Shocks and institutions

This paper analyzes Germany's unusual labor market experience during the Great Recession. We estimate a general equilibrium model with a detailed labor market block for post-unification Germany. This allows us to disentangle the role of institutions (short-time work, government spending rules) and shocks (aggregate, labor market, and policy shocks) and to perform counterfactual exercises. We identify positive labor market performance shocks (likely caused by labor market reforms) as the key driver for the “German labor market miracle” during the Great Recession.     

Determinants of seeking advice within defined contribution retirement savings schemes

We report results from a study of superannuation member advice‐seeking within their plan, explaining observed patterns by member age, gender, issue salience and size‐of‐bet effect. Inquiry mode, frequency and volume of contact with the advice‐provider, and sensitivity of members to legislative change and macroeconomic events are considered. Results show that gender (female more likely than male), age (older rather than younger), balance (larger rather than smaller) and experience (longer rather than shorter) are the strongest advice‐seeking predictors, consistent over time. Findings suggest member engagement around retirement planning may be more effective when considering the factors affecting advice‐seeking behaviour in general.     

跨界搜寻的创新驱动力：一个有调节的中介模型

以来自4个省份的357家企业为研究对象，以动态能力理论为基础，探讨跨界搜寻对技术创新的影响，以及动态能力和技术动荡在其中的中介与调节作用。结果发现：跨界搜寻的两种类型搜寻（技术知识和市场知识）对组织技术创新具有显著正向影响。同时，动态能力中介两类跨界搜寻和技术创新之间的正向关系，在技术知识跨界搜寻与技术创新之间发挥完全中介作用，在市场知识跨界搜寻与技术创新之间发挥部分中介作用。此外，组织外部较高的技术动荡水平不仅会加强动态能力对技术创新的正向影响，还会强化动态能力在两种类型搜寻与技术创新之间的中介效应。     

Comment on: “Inflation dynamics with search frictions: A structural econometric analysis” by Krause, Lopez-Salido and Lubik

The implications of search frictions on the inflation dynamics are shown here for the case with wage adjustments typically belonging to the New Keynesian model, not to the Mortensen–Pissarides framework. In that model variant, I identify the role of search frictions by an additional term entering the slope coefficient of the inflation equation. After a numerical exercise, I find results that are in line with those obtained by Krause et al. [2008. Inflation dynamics with search frictions: a structural econometric analysis. Journal of Monetary Economics 55, doi:10.1016/j.jmoneco.2008.05.003.].     

企业知识搜索战略、技术不确定性与突破性创新关系研究

研究了知识搜索战略(搜索宽度与搜索深度)对突破性创新的影响,以及技术不确定性在知识搜索战略与突破性创新关系中的调节作用。通过对182家高新技术企业的实证研究发现,搜索深度正向影响突破性创新,技术不确定性负向调节宽度搜索与突破性创新的关系,并正向调节搜索深度与突破性创新的关系。最后,探讨了研究结论的管理启示及未来研究方向。     

商务智能与传统搜索引擎的比较分析研究

本文选择三种搜索引擎作为研究对象,收集用户使用三种搜索引擎检索的耗时、有效信息数量、用户满意度等相关数据,通过定量的方法对各组数据进行方差检验,对比商务智能搜索引擎和传统搜索引擎知识发现的效果、效率以及用户满意度,研究商务智能搜索引擎的优势,并发现其存在的不足,为今后的搜索引擎开发提供参考。     

On the assignment of students to topics: A Variable Neighborhood Search approach

This article presents a study of a practical assignment problem found in teaching within higher education. Here, students are assigned to scientific topics for which written papers must be submitted. Often, preferences across topics exist among other side constraints that should be considered in solving the problem of interest. Characterizing attributes of real-world problems were studied for scientific departments in Economics and Business Administration at German universities by sending out 800 questionnaires, and analyzing the 203 responses.Based on earlier studies, a Variable Neighborhood Search (VNS) approach was formulated to solve the resulting assignment problem. Several neighborhood search operators were tested, and numerical results are reported for a range of problem scenarios taken from real-world cases. It was observed that VNS leads to superior results vs. single operator local search approaches. Furthermore, we were able to show that in the studied problem, the effectiveness of certain neighborhoods was, to a large extent, dependent on the structures of the underlying problem.An extension of the problem was formulated by integrating a second objective function, which simultaneously balances the workload of staff members while maximizing student utility. The VNS approach was implemented in a computer system, available free of charge, providing decision support for selected other institutions within higher education.     

企业技术创新搜寻研究综述

阐述了企业技术搜寻的研究现状,对现有研究成果进行了梳理,概括了当前企业技术搜寻的主要研究内容,并对今后的研究趋势和研究重点进行了分析。