中国互联网企业创业初期成功影响因素研究

在回溯国内外企业成功与失败影响因素研究文献的基础上,以200家中国互联网企业为代表,深入研究了影响互联网初创企业成功的主要因素,从中选出有代表性、容易进行客观判断的14项影响因素进行Logistic回归。结果表明,5项因素显著影响中国互联网企业初创成功,其中,领域先驱企业、BAT体系或获得BAT投资等因素对企业具有正向影响;成立后马上获得第一笔投资、“海归”创始人以及市场分散程度等因素具有负向影响。最后,对显著影响因素进行讨论,进而提出关于市场与产品类型选择、互联网产品发展战略以及融资与战略合作关系等方面建议。     

Threshold effects in panel data stochastic frontier models of dairy production in Canada

One of the most enduring problems in econometrics is how to properly account for heterogeneity among firms. Threshold regression models are intuitively appealing methods to deal with this issue. We consider a fixed-effect panel data stochastic frontier model (Schmidt and Sickles, 1984; Martin-Marcos and Suarez-Galvez, 2000) and, relying on Hansen (1999, 2000a), we propose an estimator that accommodates multiple thresholds. Our model assumes absence of any unmeasured time invariant heterogeneity across firms as in Greene (2005, p. 277). Slope and threshold parameters can be estimated using a within estimator combined with a grid search over the threshold parameters. Testing for threshold effects is problematic because threshold parameters are not identified under the null hypothesis, a case of the so-called Davies' problem. We apply the bootstrap procedure proposed by Hansen (1999, 2000a) to test for the presence of thresholds. An asymptotic confidence set for the threshold parameter can be obtained by inverting an LR test, using the distribution result presented in Hansen (1999, 2000a). Our empirical application features a panel of Quebec dairy farms. We use farm size as the threshold variable. The presence of a trend in the specification matters for the determination of the number of thresholds. Technical efficiency scores and rankings of farms estimated from competing model specifications are highly correlated and do not vary significantly across groups of farm sizes defined by the threshold parameter values.     

Allocating multiple units

Summary. This paper studies the allocation and rent distribution in multi-unit, combinatorial-bid auctions under complete information. We focus on the natural multi-unit analogue of the first-price auction, where buyers bid total payments, pay their bids, and where the seller allocates goods to maximize his revenue. While there are many equilibria in this auction, only efficient equilibria remain when the truthful equilibrium restriction of the menu-auction literature is used. Focusing on these equilibria we first show that the first-price auction just described is revenue and outcome equivalent to a Vickrey auction, which is the multi unit analogue of a second-price auction. Furthermore, we characterize these equilibria when valuations take a number of different forms: diminishing marginal valuations, increasing average valuations, and marginal valuations with single turning points. Received: December 23, 1999; revised version: December 10, 2001     

我国企业开展业务流程再造（BPR）的再思考

由于我国企业基础能力较弱，管理水平较低，员工综合素质不高，顾客意识差，竞争能力不强，难以适应企业外部环境的要求，加之传统组织职能分工的弊端，实施业务流程再造（BPR）这一全新的管理模式已成为我国企业改革的必然选择。我国企业在实施业务流程再造的过程中，应采取以下策略：（1）实施系统化改造的方式；（2）以人为本，重视人的因素；（3）以顾客为导向；（4）采取关键性策略；（5）对企业进行跨组织流程再造。     

Performance of private higher education institutions in Vietnam: evidence using DEA-based bootstrap directional distance approach with quasi-fixed inputs

Vietnam’s higher education has witnessed substantial improvements since the implementation of the Doi Moi (renovation) policy. One of the significant developments is the promotion of establishment and enhancement of the role of private institutions in national education systems. However, the quest to improve the overall performance of the private higher education institutions remains a big challenge for many stakeholders. We assess the performance of Vietnamese private universities using a data envelopment analysis–based bootstrap directional distance approach with quasi-fixed inputs. The results show that there was a large variation in the efficiency levels of private universities within and between academic years and between metropolitan and other private universities. Our empirical findings provide more insights for educational leaders and policy makers on the performance of private higher education institutions and the implications of privatization of the national higher education system.     

Decomposing the operational efficiency of major cruise lines: A network data envelopment analysis approach in the presence of shared input and quasi-fixed input

To examine the top cruise lines' operational efficiency in three dimensions, namely, production, marketing, and profitability, this study adopts a network data envelopment analysis approach considering shared and quasi-fixed input factors. The empirical results reveal the following findings. First, the production process tends to outperform marketing and profitability processes. Second, inefficiency of a cruise line mostly stems from overconsumption of the exogenous inputs in each process and the shared input. Third, the relationships between operational efficiency of cruise lines and some categorical factors are examined. Finally, some managerial implications derived from the empirical results are formulated for cruise lines.     

越南税收行政改革

该文分析了越南税收行政改革取得的突破性进展,提出了新时期税收行政改革的基本方向和措施。