Inequality and entrepreneurial thresholds

We explore the relationship between inequality and entrepreneurial activity. Drawing on cross-sectional data from a largescale survey of the economic conditions of individuals across India, we develop a number of dimensions of inequality to explore empirically how inequality interacts with entrepreneurship, operationalized as self-employment or as employing other people. We find compelling evidence that there are thresholds to becoming self-employed, and even more so to assembling the combinations of resources and personal attributes required to become an employer. Greater inequality leaves more people unable to make the transition to self-employment, leaving casual laboring as the occupation of necessity. At the same time, inequality increases the number of employers in a society, by concentrating resources - particularly land and finance - enough for significant numbers of people to be able to cross this higher threshold. Lastly, greater differentiation into social or religious groups curtails the ability to cross either entrepreneurial threshold, presumably by limiting the extent and benefits of social networks of value for entrepreneurship.     

浅析多媒体技术在车辆工程教学中的应用

随着教育的发展 ,传统的教学方法已不能满足时代的需要 ,亟待运用现代教育技术手段 ,特别是多媒体的教学形式进入课堂 ,以发挥其特有的功能来提高学习效率。本文浅淡了如何在车辆工程教学中运用计算机多媒体的图、文、声、像并茂的特点 ,有效的激发学生的学习兴趣。     

Technological substitution in the United States pulp and paper industry: The sulfate pulping process

This paper presents an econometric analysis of the diffusion of the sulfate pulping process throughout the U.S. pulp and paper industry. A dynamic equilibrium, Gompertz diffusion function is employed to derive a multivariate estimation model which incorporates more information than the traditional approach of estimating the growth rate function alone. The empirical results suggest that the econometric approach provides a useful integration of the technological diffusion process and the comparative static theory of demand. The sulfate pulping process is projected to continue capturing market share at a relatively rapid rate, and could account for 90% or more of total U.S. woodpulp production by the year 2000.     

Industrial life cycles and learning curves: Interaction of marketing and production

The price-oriented experience curve has been widely utilized as a model to design marketing strategies. Yet, it is cost over which many firms exercise the most control. This article explores the cost-oriented learning curve in conjunction with the product life cycle model as joint strategy constructs. Implications of variations in the learning curve parameters are examined.     

Optimizing the credit term decisions in supply chain finance

We study a credit term determination problem in the context of a supplier-buyer supply chain. The supplier's credit term decision is simultaneously made with its production and inventory decisions, and most importantly, it is impacted by the buyer's order quantity. We present a new game-theoretic framework to model this problem, which captures the interaction between the supplier's credit term decision and the buyer's order decision in a multi-period setting. An exact method based on nonlinear programming is implemented to obtain the optimal solutions. We apply our methodologies on a real world case. The computational results show that our approach significantly outperforms the heuristics with fixed credit terms, and either a short or a long credit term can be sub-optimal for the supplier in profitability. Our work offers the first data-driven model and solution approach that assists purchasing and supply managers to make optimal dynamic credit term decision in conjunction with production, ordering and inventory decisions in a game-theoretic setting.     

Well-being effects of self-employment: A spatial inquiry

Our paper presents an empirical analysis of entrepreneurial well-being using a large-scale longitudinal household survey from the UK that tracks almost 50,000 individuals across seven waves over the period 2009–2017, as well as a number of exploratory case studies. We contribute to the existing literature by investigating how entrepreneurial well-being varies across locations along the urban-rural continuum, and across wealthy-deprived neighbourhoods. We use a Coarsened Exact Matching (CEM) approach to compare the well-being outcomes of individuals who switch into self-employment from waged employment, and show that entrepreneurial well-being, in the form of job satisfaction, is significantly higher for those living in semi-urban locations, relative to those living in urban and rural locations. We argue that semi-urban locations provide an optimal combination of ease of doing business and quality of life. Our results also show that individuals in wealthy neighbourhoods who switch into self-employment experience higher job satisfaction than otherwise comparable individuals living in materially deprived neighbourhoods, although the latter experience greater levels of life satisfaction following the switch.     

商部的设立与清末农业的振兴

清末时期,面对传统农业的困境和西方对中国农业的冲击,商部(农工商部)作为新设的专门管理全国实业的中央机构,采取了调查农情,重视垦荒种植,改良棉业,提倡蚕桑,振兴茶业,讲求农学,劝设农事试验场,劝办农会等一系列政策措施,促进了清末农业的发展,推动了中国农业现代化进程。     

Grid analysis for sales supervision

Falling to recognize the unique need and desire of salespeople, the sales manager tends to allocate supervisory time according to the amount of his or her past selling experience. This time allocation results in either the excessive or insufficient supervision of sales personnel. This article describes a process of arriving at a more optimum allocation of supervisory time.     

Advisors and decision-makers in product eliminations

This article reports on the product elimination decision within selected sectors of the British engineering industry. The study identified and examined the key organizational participants in product elimination activities. The marketing function and a top management committee generally assumed a significant portion of the product elimination decision making. The results of the study suggested that the people responsible for product elimination varies considerably among companies, depending on such factors as size, product diversity, operations technology, and market competition.     

Applying financial portfolio and multiple criteria approaches to product line decisions

This article describes the application of decision rules from financial portfolio theory to the evaluation of product lines. The focus is on the risk/return implications of an “add” decision to the total portfolio versus the individual product. Multiple criteria approaches that aid product line evaluations are also presented.