2 1 The innovative transport systems and the CityMobil project 10 1.1 The research questions 10 2 The state of art in the field of automatic transport systems 12 2.1 Case studies and demand studies for innovative transport systems 12 3 The design and implementation of surveys 14 3.1 Definition of experimental design 14 3.2 Questionnaire design and delivery 16 3.3 First analyses on the collected sample 18 4 Calibration of Logit Multionomial demand models 21 4.1 Methodology 21 4.2 Calibration of the “full” model. 22 4.3 Calibration of the “final” model 24 4.4 The demand analysis through the final Multinomial Logit model 25 5 The analysis of interaction between the demand and socioeconomic attributes 31 5.1 Methodology 31 5.2 Application of Mixed Logit models to the demand 31 5.3 Analysis of the interactions between demand and socioeconomic attributes through Mixed Logit models 32 5.4 Mixed Logit model and interaction between age and the demand for the CTS 38 5.5 Demand analysis with Mixed Logit model 39 6 Final analyses and conclusions 45 6.1 Comparison between the results of the analyses 45 6.2 Conclusions 48 6.3 Answers to the research questions and future developments 52

The European commission

The theory of precautionary saving is shown in this paper to be isomorphic to the Arrow-Pratt theory of risk aversion, making possible the application of a large body of knowledge about risk aversion to precautionary saving, and more generally, to the theory of optimal choice under risk In particular, a measure of the strength of precautionary saving motive analogous to the Arrow-Pratt measure of risk aversion is used to establish a number of new propositions about precautionary saving, and to give a new interpretation of the Oreze-Modigliani substitution effect

Precautionary Saving in the Small and in the Large

Social scientists often estimate models from correlational data, where the independent variable has not been exogenously manipulated; they also make implicit or explicit causal claims based on these models. When can these claims be made? We answer this question by first discussing design and estimation conditions under which model estimates can be interpreted, using the randomized experiment as the gold standard. We show how endogeneity – which includes omitted variables, omitted selection, simultaneity, common-method variance, and measurement error – renders estimates causally uninterpretable. Second, we present methods that allow researchers to test causal claims in situations where randomization is not possible or when causal interpretation could be confounded; these methods include fixed-effects panel, sample selection, instrumental variable, regression discontinuity, and difference-in-differences models. Third, we take stock of the methodological rigor with which causal claims are being made in a social sciences discipline by reviewing a representative sample of 110 articles on leadership published in the previous 10 years in top-tier journals. Our key finding is that researchers fail to address at least 66% and up to 90% of design and estimation conditions that make causal claims invalid. We conclude by offering 10 suggestions on how to improve non-experimental research.

On making causal claims : A review and recommendations

The converging roles of men and women are among the grandest advances in society and the economy in the last century. These aspects of the grand gender convergence are figurative chapters in a history of gender roles. But what must the “last” chapter contain for there to be equality in the labor market? The answer may come as a surprise. The solution does not (necessarily) have to involve government intervention and it need not make men more responsible in the home (although that wouldn't hurt). But it must involve changes in the labor market, especially how jobs are structured and remunerated to enhance temporal flexibility. The gender gap in pay would be considerably reduced and might vanish altogether if firms did not have an incentive to disproportionately reward individuals who labored long hours and worked particular hours. Such change has taken off in various sectors, such as technology, science, and health, but is less apparent in the corporate, financial, and legal worlds. (JEL J3, J16, ...

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A Grand Gender Convergence: Its Last Chapter

Nonstandard employment relations—such as part-time work, temporary help agency and contract company employment, short-term and contingent work, and independent contracting—have become increasingly prominent ways of organizing work in recent years. Our understanding of these nonstandard work arrangements has been hampered by inconsistent definitions, often inadequate measures, and the paucity of comparative research. This chapter reviews the emerging research on these nonstandard work arrangements. The review emphasizes the multidisciplinary nature of contributions to this field, including research by a variety of sociologists, economists, and psychologists. It also focuses on cross-national research, which is needed to investigate how macroeconomic, political, and institutional factors affect the nature of employment relations. Areas for future research are suggested.

http://disciplinas.stoa.usp.br/pluginfile.php/133966/mod_resource/content/1/Kalleberg_2000_Nonstandard%20employment%20relations.pdf

Nonstandard Employment Relations: Part-time, Temporary and Contract Work

Atypical Employment in the European Union.

We have used longitudinal test data on various aspects of people's cognitive abilities to analyze whether overeducated workers are more vulnerable to a decline in their cognitive abilities, and undereducated workers are less vulnerable. We found that a job-worker mismatch induces a cognitive decline with respect to immediate and delayed recall abilities, cognitive flexibility and verbal fluency. Our findings indicate that, to some extent, it is the adjustment of the ability level of the overeducated and undereducated workers that adjusts initial job-worker mismatch. This adds to the relevance of preventing overeducation, and
shows that being employed in a challenging job contributes to workers' cognitive resilience.

/pdf/job-worker-mismatch-and-cognitive-decline-4n60ymy1qb.pdf

Job-worker mismatch and cognitive decline

This paper analyses the effects of both training and overeducation on upward mobility in the internal labour market, the professional market and the “supplementary labour market”. The latter segment can be considered as a broadly defined secondary labour market as it is not restricted to the low‐level unskilled jobs only. This broader definition – also found in initial segmentation theory – allows for the changed character of the secondary labour market in the industrialized countries. As expected, “career training” influences upward mobility positively. However, contrary to the predictions of segmentation theory, particularly in the supplementary labour market career training is a means of gaining promotion to a higher level job. Overeducation also affects upward mobility positively, which indicates that overeducation is to some extent a temporary phenomenon at the individual level. However, this also holds in particular in the supplementary segment of the labour market. The estimation results show that the supplementary labour market is less of a dead end than the segmentation theory predicts and is a more valuable place to get training than has been recognized. The supplementary market probably plays an important role in the transition process between initial education and the labour market. Although workers may be initially overeducated in their first jobs, a supplementary segment job could be an attractive step towards reaching a more suitable position in the labour market.

/pdf/the-effects-of-training-and-overeducation-on-career-mobility-2w63cggjjc.pdf

The effects of training and overeducation on career mobility in a segmented labour market

Introduction: the debate in economics about skill utilization, Lex Borghaus and Andries de Grip. Part 1 Underutilization or upgrading?: technology and the demand for skills, Edward Wolff has the Finnish labour market bumped the least educated?, Rita Asplund and Reija Lilja are British workers becoming more skilled?, Francis Green et al. Part 2 Cause of underutilization: overducation and crowding out of low-skilled workers, Joan Muysken and Bas ter Weel over-qualification makes low-wage employment attractive, Thomas Zwick overeducation and crowding out in Britain, Harminder Battu and Peter Sloane the effect of bumping down on wages - an empirical test, Ides Nicaise. Part 3 Consequences of underutilization of skills: low wages, skills and the utilization of skills, Lex Borghans et al do more high-skilled workers occupy simple jobs during bad times?, Pieter Gautier job competition in the Dutch labour market, Loek Groot and Albert Hoek.

The overeducated worker? : the economics of skill utilization

Until now there has been surprisingly little research on the causes of and the remedies for skills obsolescence. This study tries to fill that gap to some extent by analysing the relation between risk factors and skills obsolescence. Moreover, the role remedies play to counter skills obsolescence is analysed. Four empirical analyses that relate skills obsolescence to risk factors and remedies are presented. We find that most risk factors identified in the literature can be validated empirically. The remedies for skills obsolescence are not effective in all situations: the results show that there is considerable variation in the effectiveness of the remedies across different types of skills obsolescence. Although current available data do not allow a comprehensive analysis, which also takes account of relations between the various types of skills obsolescence, the results obtained are plausible and offer a starting point for further research.

/pdf/skills-obsolescence-causes-and-cures-4kycmq81vr.pdf

Andries de Grip

Papers

Atypical Employment in the European Union.

Job-worker mismatch and cognitive decline

The effects of training and overeducation on career mobility in a segmented labour market

The overeducated worker? : the economics of skill utilization

Skills Obsolescence: Causes and Cures