Thomas Carlyle on the use of numbers in economics

Thomas Carlyle’s criticism of economics goes far beyond his epithet, “Dismal Science.” One aspect of economics that attracted his attention was its use of numbers in both theories and empiricisms. Here is explored his attacks on economist’s use of arithmetic in explaining human behavior, and statistics in addressing the condition of the working class.     

How to estimate market concentration given grouped data

A novel method is proposed of estimating market concentration for the census case in which firms are grouped into size classes and all that is known about the firms in each category is their number and aggregate size. The formula arises as a way of applying an alternative expression for the concentration ratio based upon the original and first moment size distributions of firms. The semi-parametric technique, which includes a method of interval as well as point estimation, is derived, applied and validated using actual and simulated data. It is anticipated that the estimator will be of use in competition analysis as well as in academic research.     

Toward a North American Security Perimeter? Assessing the trade,FDI, and welfare impacts of liberalizing 9/11 security measures

This paper examines the trade, FDI, and welfare impacts of (liberalizing) 9/11 security measures at the Canada–US border. First, the study provides econometric estimates of the impact of post 9/11 security measures on bilateral (US–Canada) trade flows. Second, we compute sectoral tariff rates “equivalent” to the 9/11 security measures using these econometric estimates together with a three-region nine-sector general equilibrium model. Finally, we assess for both the Canadian and the US economies: 1) the (general equilibrium) impacts on trade, FDI, and welfare, of (liberalising) the 9/11 US security measures and 2) the economic impacts of a change of security paradigm toward a North American Security Perimeter within a Customs Union that would liberalize the Canadian and US 9/11 security measures at the Canada–US border and shift them at the external security perimeter.     

Can contracts solve the hold-up problem? Experimental evidence

In the contract-theoretic literature, there is a vital debate about whether contracts can mitigate the hold-up problem, in particular when renegotiation cannot be prevented. Ultimately, this question has to be answered empirically. As a first step, we have conducted a laboratory experiment with 960 participants. We consider investments that directly benefit the non-investing party. While according to standard theory, contracting would be useless if renegotiation cannot be ruled out, we find that option contracts significantly improve investment incentives compared to a no-contract treatment. This finding might be attributed to Hart and Moore?s (2008) recent idea that contracts can serve as reference points.     

Educational innovation: nursing's leadership challenge

Hospitals are increasingly looking for the best graduates, but as this competitive environment increases, little focus is on collaboration and innovation in changing the education system so there will be more "best nurses." In universities today we find numerous barriers to investment in innovation and risk, which hampers the ability to address national workforce needs and compete in a global marketplace. Academic institutions need to become more creative, and begin to look at nursing as a partnership between those who essentially purchase our product and those who develop the product. Nursing leadership needs to collaborate quickly with integration and innovation in developing, improving, and maintaining the skill set of the nursing workforce and assuring competent practitioners from our educational system going forward. We need to share our valuable resources and move out of our silos and begin to look at the big picture, and we need to reach inside and find that creative child that works within us.     

A Comparative Study of the Benefits of Applying Target Cost Contracts Between South Australia and Hong Kong

This article aims to identify and analyze the key benefits of adopting Guaranteed Maximum Price and Target Cost Contracts (GMP/TCC) over and above the traditional lump‐sum contractual arrangement through an empirical questionnaire survey conducted in South Australia and compared with the findings in Hong Kong. The Mann‐Whitney U Test indicated differences in perception between the two groups of respondents on the majority of the identified benefits. The study has provided an in‐depth understanding of the perceived benefits of the GMP/TCC scheme, hence leading to a wider application of those alternative integrated procurement strategies in both regions for reference by the construction community at large.     

The sociology of innovation and new biotechnologies

Understanding the social processes that support innovations in new biotechnologies presents an interesting challenge. Evidence from the Australian bioindustry reveals how the development and integration of new biotechnologies is a dynamic social process. Our findings highlight how new technology acceptance and integration rested on the micro‐politics of sense‐making and relational networking.     

SEQUENTIAL OR SIMULTANEOUS ELECTIONS? A WELFARE ANALYSIS

Should all voters vote on the same day or should elections be staggered? Using a model of voting and social learning, we illustrate that sequential elections place too much weight on early states but also provide late voters with valuable information. Simultaneous elections equally weigh states but place too much weight on voter priors, providing an inappropriate advantage to front‐runners. Simultaneous elections are thus preferred if the front‐runner advantage is small, but sequential elections are preferred if the advantage is large. Our quantitative welfare analysis of presidential primaries suggests that simultaneous systems slightly outperform sequential systems.     

人工神经网络自学习方法在大港滩海油田的应用

本文以人工神经网络自学习方法在大港滩海油田的试验为例,探讨能否利用人工神经网络自学习方法预测泵的工作状况并通过生产参数优化提高电潜泵油井产量.试验结果表明,该方法可以解决电潜泵油井生产过程中的两大问题:预测泵的工作状况,实时计算并优化泵的最大合理产量.操作人员根据预测结果可及时合理地采取防范措施,尽量避免故障的发生或将故障损失降到最低,及时调整油井的合理产量,使油井处于最佳生产状态,提高电潜泵油井生产运行的稳定性,并提高了试验油井产量的5%.     

On the incidence of commissions in auction markets

We analyze the welfare consequences of an increase in the commissions charged by intermediaries in auction markets. Commissions are similar to taxes imposed on buyers and sellers, and standard economics suggests that both sellers and buyers are made worse off by the tax. However, we show that when the buyers' participation constraint binds and when sellers set optimal reservation prices, the level of commissions correlates to participation and reservation prices in such a way that participating buyers strictly gain from higher commissions.