Estimating Cross Province and Municipal City Price Level Differences in China: Some Experiments and Results

The estimation of Sub-national purchasing power parities (PPPs) for countries where the regions and provinces have different level of development is fundamental for income, consumption, standard of living real term comparisons, as well as for measuring cross-region welfare inequality. This is even truer for large countries like China, where the above aggregates exhibit great variability among provinces. The aim of this paper is to compute the price level differences, measured by the PPPs, for 31 Chinese Provinces and Municipal Cities, based on a sample of 62 goods and services for the year 2014. To our knowledge, this is the first attempt to do it since many years. After a short review of previous studies on China cross-province and municipal cities price level differences measurement and the illustration of methodology and data used, the results of our elaborations are presented and discussed. Taking Beijing as the base area, there is evidence that the PPP max/min ratio is 1.74, confirming the common belief that China cross-province and municipal cities price levels are significantly different.     

Applying fuzzy logic to personnel assessment: a case study

The main results of a research project spanning over several years are presented in this paper. The aim of the research was the improvement of the effectiveness of personnel assessment within a large Italian corporation operating in the research sector. The first step of the research consisted of the analysis of the raters’ behavior, so as to elicit the judgement categories and prototypes they used in the judgement formulation, based on the rating method adopted in the corporation. The second step consisted of improving the rating method using fuzzy logic. The corporate management tested the new rating method and found it more efficient and reliable than the previous one.     

Costs and benefits for farmers participating in innovative marketing channels for quality food products

The extra benefits and costs for farmers participating in six innovative marketing channels for quality products in Belgium are analysed. A theoretical model serves as an analytical device to structure the qualitative comparisons with the common marketing channel and with direct sale. The analysis is mainly qualitative, because many benefits and costs cannot be quantified exactly. In the analysis, transaction costs are explicitly taken into account because they constitute a real cost when switching from a common to an innovative marketing channel. In all six marketing channels, higher costs are compensated for by higher revenues due to higher prices and a higher turnover and by reduced uncertainty. These factors encourage farmers to enter quality food projects. In addition, we found that co-operation decreases transaction costs and that collective initiatives enable farmers to enter the pathway of quality food production without investing excessive labour or capital.     

The dual network structure of organizational problem solving: A case study on open source software development

We reconstruct the dual network structure generated by the association between 72 contributors and 737 software bugs engaged during a full development cycle of the free/open source software project Epiphany. Estimates of structural parameters of Exponential Random Graph Models for two-mode networks reveal the structural logics shaping activities of collaborative problem solving. After controlling for contributor-specific and software bug-specific characteristics, we find that contributors (“problem solvers”) tend to distribute their activity over multiple software bugs. At the same time, however, we find that software bugs (“problems”) tend not to share multiple contributors. This dual tendency toward de-specialization and exclusivity is sustained by specific local network dependencies revealed by our analysis which also suggests possible organizational mechanisms that may be underlying the puzzling macro-structural regularities frequently observed, but rarely explained, in the production of open source software. By combining these mechanisms with the influence of contributors characterized by different levels of involvement in the project, we provide micro-level evidence of structural interdependence between “core” and “peripheral” members identified exclusively on the basis of their individual level of contribution to the project.     

A note on coherent invariant distributions as non-informative priors for exponential and location-scale families

The problem of finding a non-informative prior distribution for a parameter is approached using the notion of context-invariance. This concept is revisited and discussed with the aim of applying it to finding context-invariant non-informative priors for the one-parameter exponential family (suitably redefined) and the location-scale family. Our approach, carried-out in a finitely-additive framework, generally leads to a class of non-informative priors with respect to any given problem. For most common statistical models such a class does not always contain the corresponding Jeffreys' prior, but does contain the so-called ALI prior by Hartigan.     

How Do We Assess How Agentic We Are? A Literature Review of Existing Instruments to Evaluate and Measure Individuals' Agency

Social Indicators Research - The importance and centrality of the construct of agency is wellknown amongst social scientists. Yet, there is still little agreement on how this construct should be...     

Do women have longer conversations? Telephone evidence of gendered communication strategies

We investigate whether there are systematic gender differences in communication behavior by telephone. First, we report a study of anonymized billing records of 3103 subscribers to a large mobile operator in Italy and Greece over 2 years from 2006 to 2008. Faced with identical tariffs, women make fewer calls than men, and their calls last 16% longer controlling for other factors. Secondly, we report a study of some 92,000 person-days of calls to call-center employees of a large consumer services company operator at four sites in Germany. Calls randomly allocated to women last 15% longer than those of men controlling for other factors. There is no evidence, however, that this results in the women being any less effective employees than the men; indeed, in operations involving sales where it is possible to measure productivity by this criterion, female employees make slightly more sales per shift than men. It appears instead to reflect systematic gender differences in communication strategies, though it may reflect also an element of preference by both men and women for speaking to women. The findings of both studies are highly statistically significant and are found across all age groups. The magnitude of gender differences is sensitive to the costs of communication. The results have implications for possible explanations of gender clustering in the labor market.     

Individual determinants of social behavior

By using unique data from the section on social behavior of the Bank of Italy's 2004 Survey of Household Income and Wealth (SHIW), the paper studies the individual determinants of several aspects of social behavior: attitudes to cooperating with anonymous others; interest in politics; participation in groups and associations; and propensity to rely on favoritism both in finding a job and in dealing with government red tape. Our findings suggest that these different aspects of social behavior are only weakly correlated to each other and are explained by different individual determinants. We find that older and more educated individuals display a greater willingness to cooperate, a stronger interest in politics, and more intense association activity. By contrast, the likelihood of relying on favoritism does not depend on age and education. We also find that home-ownership is associated with good social conduct, while urban residence has mostly a negative impact on public behavior. Finally, having left-wing political opinions increases the interest in politics, while it does not affect the other aspects of social behavior.     

Soziale Schichtung Und Delinquenz

The frequently posited relationship between social class and criminal behaviour is dubious in theory and lacking empirical evidence. Based upon the economic theory of crime by Gary S. Becker we present an extended model which integrates the effects of the individuals’ class position on their subjective evaluations of costs, utility, and the probability of being caught. Additionally, we take into account selective incentives (social opportunities) and the internalization of social norms concerning conformity (framing of the social situation) depending on social class. We test the model for two offences: shop-lifting and tax-evasion. The source of data is the German General Social Survey (ALLBUS) for the years 1990 and 2000. The empirical results support the theoretical model. There is no general relationship between the individuals’ social status and their incentives for criminal behaviour. However, the types of offences committed are affected by the social status. Subjective expected probability of failure or success is more important than fear of punishment or the expected utility. Internalized norms decrease the probability of committing a crime.