社会资本测量理论方法探讨：农户社会资本的测量

社会资本的测量一直是社会资本领域研究的重要问题.根据农户社会资本具有结构性和关系性的特征,按异质性、趋同性、工具性和情感性四个维度选取经验指标进行实证研究.研究发现:首次提出针对农户社会资本测量理论并选择出适合中国村庄环境特点、能够体现农户社会资本功能性和特征性的社会资本测量维度;提出一种更加客观并体现主体差异的IOWA客观自主评价法,并通过实证方法对社会资本进行测量;依据农户社会资本测量理论,采用定性定量相结合的分析方法对一个村庄做实证检验以确定理论及方法的合理性和有效性.     

温度测量在食品加热与保鲜中的运用

保持食品的健康和美味,必须运用到现代化的食品保鲜技术,依靠这些技术进行合理的加热或冷藏,可使食品不易变质。在食品保鲜技术中,温度的控制一直是较难掌握的技术之一,而只有合适的温度才能为食品加热与保鲜创造最有效的储藏环境,为此,必须着重发挥温度测量的作用,以有效提高食品加热保鲜的合理性。     

The impact of exchange rate deviations from relative PPP equilibrium on the U.S. demand for foreign equities

Applying fixed-effects panel data, this study investigates the impact of U.S. dollar exchange rate movements during different exchange rate states (overvaluation and undervaluation) on the monthly real gross and real net purchases of foreign equities by U.S. residents over the post-Plaza Accord period. The foreign equities come from 22 developed and 25 developing countries. Previous research has posited two alternative hypotheses regarding the relationship between exchange rates and foreign investment. These are the wealth effect and the profit-oriented effect. The evidence herein suggests that these two hypotheses coexist. We find robust evidence for a negative relationship between the exchange rate movements of an undervalued U.S. dollar and the demand for foreign equities. For developed countries, the wealth effect dominates the profit-oriented effect when the U.S. dollar is overvalued, while, for developing countries, the profit-oriented effect dominates the wealth effect. The results emphasize the importance of considering exchange rate states derived from a relative PPP equilibrium when analyzing U.S. allocations to foreign equities. The findings with respect to the macroeconomic control variables are mainly in agreement with the predictions of international financial theory. Some of the results, however, disappear or become inconclusive for the period after the bankruptcy of Lehman Brothers. This may be explained by the increased uncertainty in international financial markets following this unprecedented event. The findings are robust with respect to different constructed equilibrium exchange rates.     

监视和测量设备的控制——写给从事管理体系认证的工作者

监视和测量设备是组织提供的产品是否符合规定要求的耳目和神经。因此,组织的监视和测量设备必须灵敏、准确,并满足产品的需要。本文首先分析了监视和测量设备控制的总体要求,指出应按照需求,配备合适的监视设备和测量设备。     

Measurement of patient-reported outcomes. 1: The search for the Holy Grail

Abstract

Patient-reported outcome measures (PROMs) are used to collect information directly from patients. They may cover several different types of outcomes ranging from symptoms, functioning, utility, satisfaction, through to quality-of-life (QoL). They generally consist of self-completed questionnaires that can be administered by means of hard copies or in a range of electronic formats. PROMs vary considerably in terms of the constructs they assess, the care with which they are developed, and their scientific quality. However, none of the PROMs available approach the quality of measurement achieved by measures/instruments used in physics. PROs are examples of latent variables. These are not directly observable, but can be inferred from, for example, responses to a questionnaire. The only measure of a latent variable that approaches the quality of measurement achieved by the physical sciences is the Lexile Framework for Reading. This framework is based on a construct theory that grew out of an analysis of several available reading measures. A specification equation was generated that was able to link the construct theory to scores obtained with the Lexile measure. A fundamental requirement of this quality of measurement is that the data collected with the model fit Rasch Measurement Theory (RMT). It is argued that PROM developers should aspire to match this level of measurement sophistication if their instruments are to provide valid insights into the impacts of disease and its treatment.     

A multidisciplinary review into the definition,operationalization, and measurement of talent

Organizations report great difficulty in measuring talent accurately, reflecting the lack of theoretical foundations for talent-identification in the HRM literature. This multidisciplinary review aims to contribute to the establishment of a stronger theoretical basis for talent-management by presenting a conceptual framework of talent in which the definition, operationalization and measurement of talent and its relation to excellent performance is clarified. We systematically introduce 11 propositions into the framework, building on fragmented insights from the literature—from the fields of HRM, gifted education, positive psychology, and vocational psychology respectively—that will guide readers in understanding and applying the proposed framework.     

From talent management to talent optimization

The term ‘talent management’ has been around for quite some time, but definitions abound around the globe, applications are varied and a plethora of measures—mostly tactical—are currently being used. This article addresses how the concept of talent management is of both theoretical and practical value in any industry or geography. How can we know when talent investments have been optimized? What is the talent lifecycle and why is it important? Additionally, the article presents and illustrates the People Equity framework that serves as a global bridge between important individual and business outcomes such as turnover, financial performance, quality, productivity, customer retention, and organizational processes and policies that drive high or low talent optimization.     

Does IFRS Adoption Increase the Accuracy of Chinese Analysts’ Forecasts?

This article investigates the impact of International Financial Reporting Standards (IFRS) adoption on the accuracy of Chinese analysts’ earnings forecasts. We find that after IFRS adoption, the accuracy of Chinese analysts’ forecasts decreases rather than increasing as they do in developed countries documented by the extant literature. Further investigation finds that this decrease is associated with a fair value measurement of financial assets held for trading. Our finding provides empirical evidence supporting the argument that the effectiveness of IFRS adoption could be negative in a developing country depending on its setting and fair value measurement brought about by IFRS could contribute to the negative effect in this setting.     

Measuring the Level and Inequality of Wealth: An Application to China

We construct and compare three distinct measures of household asset wealth that complement traditional income‐ or expenditure‐based measures of socioeconomic status. We apply these measures to longitudinal household survey data from China and demonstrate that household asset wealth has been increasing over time, a theme consistent with many previous studies on the process of development in China. Unlike other studies that have shown rising income inequality over time, however, we show that asset wealth inequality has actually been declining in recent years, indicating widespread participation in the benefits of economic reforms. Furthermore, the evolution in the cumulative distribution of household welfare is such that social welfare has been increasing with the passage of time, despite rising inequality in the early years of the survey.     

Productivity Dispersion and Measurement Error

Several reasons have been put forward to explain the high dispersion of productivity across establishments: quality of management, different input usage and market distortions, to name but a few. Although it is acknowledged that a sizable portion of productivity dispersion may also be due to measurement error, little research has been devoted to identifying how much they contribute. We outline a novel procedure for identifying the role of measurement error in explaining the empirical dispersion of productivity across establishments. The starting point of our framework is the errors-in-variable model consisting of a measurement equation and a structural equation for latent productivity. We estimate the variance of the measurement error and subsequently estimate the variance of the latent productivity variable, which is not contaminated by measurement error. Using Norwegian data on the manufacture of food products, we find that about one percent of the measured dispersion stems from measurement error.