Entrepreneurship by immigrants: a review of existing literature and directions for future research

The topic of immigrant entrepreneurship has gained considerable attention in social and policy circles around the world. Likewise, research on it has grown significantly over the past few decades, with studies examining the micro-, meso-, and macro-level antecedents and consequences of this phenomenon. While contributing to our knowledge, this growth in literature has also created complexity within this domain. As such, there is a need to take stock of current research. In the present study, I advance in this direction. I delineate the boundaries and outline the contributions of immigrant entrepreneurship research to the field of entrepreneurship. Thereafter, based on a comprehensive review of 69 studies published between 1980 and 2016 in journals across multiple disciplines, I develop a framework to integrate findings within this domain. Finally, I identify gaps and advance suggestions for future research. It is hoped that these steps will provide a clear vision of common research ground on which to build theory, identify assumptions, develop meaningful research questions and establish the ontological and epistemological base of this domain.     

Circular domains

I introduce the notion of circular domains and prove that on any circular domain there is no strategy-proof and nondictatorial social choice function. Moreover, I show that on any proper subset of a minimal circular domain, there exists a group strategy-proof and essential social choice function. These results together detect the minimal size of the domains over which the incompatibility arises with respect to pairs of democratic-incentive requirements (nondictatorial, strategy-proof) and (essential, group strategy-proof).     

面向对象思想在管理中的应用研究

将广泛应用于软件开发中的面向对象思想引入管理领域，重新认识管理，将管理看作是对管理事务的不断抽象和封装的过程，进而从一个新的视角解决管理问题，以提高管理的效率。     

Dissolving multi-partnerships efficiently

I study a market where agents with unit demand jointly own heterogeneous goods. In this market, the existence of an efficient, incentive compatible, individually rational, and budget balanced mechanism depends on the shares of the agents. I characterize the set of shares for which having such a mechanism is possible. This set includes the symmetric allocation and excludes the allocation in which every agent owns a separate good.     

曲柄滑块机构的运动特性分析

这里在曲柄滑块运动简图的基础上,建立数学模型进行运动分析,并应用Matlab所具有的强大数值计算和仿真功能,绘出其位移、速度、加速度和角速度曲线图,提高了设计效率的机构精度。     

市场经济条件下省域城乡规划管理面临的问题及其制度创新

市场经济条件下,传统省域城乡规划管理模式已不能适应新的变化要求.论文针对当前省域城乡规划管理面临的一系列问题,从现代行政管理运行机制的基本原理出发,以建立与市场经济条件下省域城乡建设与发展管理要求相适应的城乡规划管理机制为目标,提出了省域城乡规划管理机制构建框架,并进而提出了市场经济条件下进行省域城乡规划管理制度创新的措施和建议.     

Continuity and incentive compatibility in cardinal mechanisms

In models without transfers, we show that every cardinal incentive compatible voting mechanism satisfying a continuity condition, can only take ordinal, but not cardinal information into account. Our results apply to many standard models in mechanism design without transfers, including the standard voting models with any domain restrictions.     

Reputation,Trust, and Rebates: How Online Auction Markets Can Improve Their Feedback Mechanisms

Reputation systems constitute an important institution, helping sustain trust in online auction markets. However, only half of buyers leave feedback after transactions, and nearly all feedback is positive. In this paper, I propose a mechanism whereby sellers can provide rebates (not necessarily in monetary form) to buyers contingent upon buyers' provision of reports. Using a game theoretical model, I show how the mechanism can increase unbiased reporting. There exists a pooling equilibrium where both good and bad sellers choose the rebate option, even though their true types are revealed through feedback. The mechanism also induces bad sellers to improve the quality of the contract.     

When the principal knows better than the agent: Subjective evaluations as an optimal disclosure mechanism

When the firm has some private and unverifiable information about an employee’s ability, it can design a subjective evaluation mechanism, whereby payments are tied to evaluations, to communicate such information. In this paper, I investigate how to design an optimal disclosure mechanism for the firm. I characterize the firm’s optimal disclosure policy as a function of the worker’s ability distribution, with the hazard rate function playing a key role. I also demonstrate that with some reasonable restrictions on the ability distribution, the firm’s optimal strategy exhibits a particular pattern: it will reward the best workers aggressively, fire the worst ones, and assign one central rating to the rest. The predictions are consistent with the way firms utilize subjective evaluations in reality.     

Property Rights Assignment: Conflict and the Implementability of Rules

The paper studies the assignment of property rights. By assignment I mean a social mechanism that transfers a valuable resource from an “unowned” state to an “owned” state (for example, a first-possession rule). I argue that any assignment mechanism faces an implementation constraint with one exception, namely the assignment by conflict. I characterize this constraint and show that under some conditions population growth facilitates rule-based assignments because appropriation by conflict becomes more costly. In other cases, however, this effect is reversed. The model may give some insights regarding the emergence and the disappearance of the open-field system in medieval Europe which, paradoxically, both have been attributed to population growth. This paper is dedicated to Horst Hegmann. For helpful and insightful comments in discussions and on the paper I thank Roderick Hay, Horst Hegmann, Christopher Kingston, Guy Kirsch, Krishna Ladha, Marc Law, Anton Miglo, Douglass North, and John Nye. I also thank the editor Amihai Glazer and two anonymous referees for their comments. The usual disclaimer applies.     

Recombination in digital innovation: Challenges,opportunities, and the importance of a theoretical framework

In this article I argue that the quest to establish digital innovation as a research domain is hindered by three challenges. As digital innovation research we are too often: a) reifying the agency of digital innovation actors; b) developing explanations of digital innovation detached from the specifics of digital technology, and c) developing overly specific explanations of digital innovation. I begin by providing a brief overview of the recombination perspective and considering why this perspective holds great appeal in the digital age. I then engage with Henfridsson et al.'s (2018) value spaces framework as a platform for framing value creation and value capture in relation to recombination in digital innovation. Next, I push Henfridsson et al.'s arguments one step further to discuss them in relation to what I consider to be the key challenges for digital innovation research. Illustrating with some of my own recent projects, I suggest that in order to fully address these challenges we need to (1) develop explanations of digital innovation acknowledging the complexity of sociomaterial interaction in digital innovation; (2) develop explanations of digital innovation building on the specifics of digital technology, and (3) develop explanations of digital innovation based on an oscillation between the specific and the general. The article concludes by pointing to future challenges and developments for digital innovation research.     

The Double-Auction Gambling Market: An Experimental Examination

A bstract .   I examine a new sports wagering mechanism that utilizes a double auction rather than the traditional wager matching bookmaker. Laboratory experiments were performed that modeled the two institutions in an attempt to compare the efficiency and volatility of the new mechanism versus the status quo. The new proposed double auction institution was less efficient and more volatile than the matching mechanism. However, the relative performance of the double auction mechanism was significantly improved by an increase in the size of the market.     

Application controlled caching for web servers

Today's web servers must have the ability to deal with large data sets, and their performance mainly depends on the control mechanism of the disc cache. Though the cache replacement algorithms in operating systems generally perform well, application-specific policies can often perform much better. In this paper, we present the application-controlled caching in user space (ACCUS) mechanism for web server disc caching. With this mechanism, an application can schedule the service requests based on the cache status of the requested files to improve its performance so that the system can gain a high parallelism of CPU processing, networking I/O and disc I/O. An application can service the cached files with a higher priority to the ones not cached, which helps reduce the latency caused by disc I/O blocking. Meanwhile, the application can enforce a policy for domain-specific cache management to obtain a higher cache hit ratio. ACCUS is implemented in two web servers of different models, Flash and userver. Despite the great differences in architectures, the empirical results show that both servers can achieve high throughput under heavy workloads with ACCUS enabled. Performance analysis for two other typical web servers, Apache? and Zeus Web Server are also conducted and the results indicate that ACCUS can achieve significant improvement in performance.     

Evidence of information transmission across currency futures markets using frequency domain tests

In this article, I examine the returns and volatility spillovers in the currency futures market incorporating the recently developed frequency domain tests. Such analysis allows differentiating between permanent (long-run) and transitory (short-run) linkages among the currency futures markets by investigating the causality dynamics at low and high frequencies respectively. I detect significant informational linkages between USD, EUR, GBP and JPY futures contracts in the Indian currency futures market. Evidence of innovations from USD futures market to other markets is the most significant for returns spillover and for volatility spillover, EUR is found to be the most significant compared to other currency futures contracts. The results would have implications for the market participants and policymakers.     

对象I/O技术的模拟实现

C++对象是存活于内存中的,但是由于RAM的易失性,需要将存活于内存中的对象,通过I/O技术及时地交换到外存中,以保证对象的持久存在(对象I/O技术也称为对象的持久化,即Persistence),所以对象I/O技术也成了C++中的一个重要操作。对象I/O技术的实现需要为对象增加一些额外的运行时信息,即RTTI,技术上的复杂性增加了开发人员所理解对象I/O的难度。本文通过对一个对象I/O技术的模拟实现,深入探讨了对象I/O技术的实现机制。     

A mechanism implementing the proportional solution

We consider the problem of a commonly owned technology which transforms a single input into a single output. We are interested in implementing a social choice rule called theproportional solution. We introduce a mechanism which implements the proportional solution in Nash, strong (Nash) and undominated Nash equilibria. In the mechanism each agent announces only two numbers which can be interpreted as the total output and her share of the total input-output combination. This paper was originally titled "Doubly implementing the proportional solution." I would like to thank my advisor William Thomson for his detailed comments and suggestions. I would also like to thank Jeffrey Banks and Sung-Whee Shin for their comments. Two anonymous referees and an editor’s comments improved this paper substantially.     

Welfare-maximizing assignment of agents to hierarchical positions

We allocate agents to three kinds of hierarchical positions: top, medium, and low. No monetary transfers are allowed. We solve for the incentive-compatible (IC) mechanisms that maximize a family of weighted social welfares that includes utilitarian and Rawlsian welfares. When the market is tough (all agents bear positive risk of obtaining a low position in any IC and feasible mechanism), then the pseudomarket mechanism with equal budgets (PM) and the Boston mechanism without priorities (BM) yield identical assignments which are always optimal. Otherwise, when the market is mild, PM and BM differ and each one implements the optimal rule under different assumptions on the curvature of virtual valuations. We also establish that both BM and PM mechanisms guarantee IC Pareto-optimal assignments for a domain of preference distributions satisfying weak assumptions.     

Vertical disintegration and training: evidence from a matched employer–employee survey

The mechanism through which outsourcing favourably impacts on workplace performance, particularly productivity, is still unclear. I explore the hypothesis that it does so by impacting workers?? training. I use AWIRS-1995, a matched employer?Cemployee survey that reports ample information on the extent of technology and organizational change in Australian workplaces. I find that there is a positive and significant impact of outsourcing on training when I do not control for the correlation between ununobservable factors in these two binary outcomes. However, once I control for this correlation using a bivariate probit estimator, the training impact of outsourcing becomes negative. I then assess the sensitivity of the outsourcing effect to endogeneity by using the method advocated by Altonji et?al. (J Polit Econ 113(1):151?C184, 2005) to find that this latter result persists even in the presence of a low correlation between unobservables.     

Sismondi's principles of liberty and economic progress

The Swiss-born liberal thinker Jean-Charles-Léonard Simonde de Sismondi (1773–1842) rejected metaphysical systems of thought in favour of historical and social analysis. However, in his mature writings, he offered an organising, although a never explicit, set of principles guiding his political and economic disquisitions. I identify Sismondi's essential principles of social study, namely, the effect of political organisation on the character of the people, the need for a ‘national reason’, along with the weight of tradition over individual representation. Subordinate principles of liberty are examined, such as respect for minorities, freedom of public debate, and engagement in local affairs. I argue that, when the political idea of a slowly matured national reason guiding the constitutional progress of liberty is applied to a rapidly changing economic domain, tension is created within Sismondi's understanding of social sciences.     

网络团购窜货问题研究

在分析企业常见分销渠道类型、窜货表现形式的基础上，研究了网络团购导致传统分销渠道窜货的形成机理，并进一步分析了网络团购引发传统分销渠道窜货的原因、实质和趋势，为网络团购得到生产商支持，实现购销通路指出一个方向。