Doing Sociology in the Age of ‘Evidence-Based Research’: Scientific Epistemology versus Political Dominance

Social science history from its beginnings has witnessed periods of confrontation between – generally speaking – qualitative and quantitative paradigms, even talking of ‘war’, ‘wrestlers’ and ‘warriors’. And, again from the very beginnings, our discipline has been forced to relate with funding agencies. Sometimes, the two paths – the scientific one and the financial one – cross: we may think at the role of the private foundations in financing a certain type of investigation, notably surveys against case studies or qualitative research. Nowadays, we see an increased attention by federal agencies and private foundations on a particular sector of research, randomized controlled trials (RCTs), focusing on techniques seen intrinsically superior from the methodological and epistemological point of view. This article will analyze the recent increase of the randomized controlled trials as the new “gold standard” for social research; the call for the “experimenting society” (Campbell American Psychologist, 24(4), 409–429, 1969), willing to import the randomized controlled trials approach into the field of social policy and planning, is not new, if we think that yet in 1963 Campbell and Stanley wrote that “a wave of enthusiasm for experimentation dominated the field of education in the Thorndike era, perhaps reaching its apex in the 1920s” (Campbell and Stanley 1963/1966: 2). Many problems of validity with RCTs soon came to be recognized – even by Campbell, who stated that he has “held off advocating an experimenting society until they can be solved” (Campbell Evaluation Practice, 15(3), 291–298, 1994: 294). In the following years a different set of evaluation strategies were developed, but today there’s a new effort to re-introduce the experimental approach in the academic arena. What is the difference? As we will see, the scientifically-based research is now established and codified by law, funding is linked to a particular way of doing research, and the consequences on scientists work are yet to be explored.     

Partnerships for heritage conservation: evidence from the archeological site of Herculaneum

In the present paper, we investigate the Herculaneum Conservation Project (HCP), a partnership agreement between one public and two non-profit actors aimed at improving the conservation of the archeological site of Herculaneum. The study is motivated by different elements of interests. First, although HCP has been defined by UNESCO as a significant case study for private–public partnership (PPP) in the cultural heritage sector, its financial and organizational aspects are still under-investigated. Second, and quite paradoxically, an analysis of HCP through the lenses of PPP literature reveals its distinctive nature—i.e. more a borderline case than a typical example of PPP. Third, the presence of a similar archeological site nearby Herculaneum—i.e. Pompeii, also defined as a Herculaneum sister city—allows a thorough assessment of the benefit of the partnership scheme in a counterfactual logic. Through the study, we complement the current debate on partnerships in the heritage field, we report on an atypical experience of partnership, and we problematize the rationale of this governance solution within the Italian public sector.     

Improving Migration Statistics: Policy and Conceptual Issues

Abstract. The availability and international comparability of migration statistics pose a severe handicap to analysis and policy debate. This paper explores a few of the underlying policy and conceptual issues at stake and identifies some of the institutional factors contributing to the slow and uncertain in progress in this field. Three main issues are discussed: the statistical definitions of migration; the administrative sources of data; and the international initiatives to improve the comparability of statistics. At the beginning of the 1990s the context appears promising for a renewed effort of national and international organizations and statistical agencies. New opportunities and challenges for the improvement of migration statistics are being developed.     

The Determinants of Contract Strikes: A Microeconometric Analysis

ABSTRACT: This paper explores the determinants of contract strikes using micro-data referred to a regional economic system (the Veneto region). An effort is made to build up suitable variables to test the hypothesis that strikes are the outcome of an exchange with asymmetric information. The results obtained with a logit model validate the implications of this theory: strikes turn out more likely when a firm is in low state, the industry labour market is tight, and the union is unable to get information from management. Other significant findings are the dependence of strike action on the workforce composition, the industry and location in which the firm operates, its kind of property and productive processes, and the season in which the bargaining takes place.     

以生态文明观发展小城镇的都市农业

当前中国小城镇都市农业存在诸多问题:农用耕地不断减少,土地资源浪费严重;农业污染严重;农业劳动力素质、收入偏低;区位优势和产业优势明显,但交通运输能力有限;农业资金投入不足,缺少相应的政策法规指导;农业旅游业档次不高,缺乏特色等.因此要加强土地保护和综合利用;保持生态环境的可持续发展;重视人才培养,全面提升整体素质;开发农业旅游业,加强基础设施建设;增加农业资金和科技投入;制定规划法规加强管理,挖掘地方特色.     

Tests for cointegration rank and choice of the alternative

This paper discusses likelihood-ratio (LR) tests on the cointegrating (CI) rank which consider any possible dimension of the CI rank under the alternative. The trace test and lambda-max test are obtained as special cases. Limit quantiles for all the tests in the class are derived. It is found that any of these tests can be used to construct an estimator of the CI rank, with no differences in asymptotic properties when the alternative is fixed. The properties of the class of tests are investigated by local asymptotic analysis, a simulation study and an empirical illustration. It is found that all the tests in the class have comparable power, which deteriorates substantially as the number of random walks increases. Tests constructed for a specific class of alternatives present minor power gains for alternatives in the class, and require the alternative to be far from the null. No test in this class is found to be asymptotically (in-)admissible. Some of the new tests in the class can also be arranged to give a constrained estimator of the CI rank, that restricts the minimum number of common trends. The power gains that these tests can obtain by constraining the minimum number of common trends appears to be limited and outweighted by the risk of inconsistency induced by the constrains. As a consequence, no value of the CI rank should be left untested, unless it can be excluded beyond any reasonable doubt.     

Certificates of optimality: the third way to biproportional apportionment

The biproportional apportionment problem (BAP) must be faced in many proportional electoral systems where seats must be allocated to parties within regions. BAP is a non-trivial optimization problem, and only sophisticated algorithms are currently available for solving it. The issue is: are they “writable” as an actual law? Citizens rightly demand simple, easy to understand, voting systems. The alternative, though, seems to have simple, but unsound electoral laws. We propose the following way out of this dilemma: leave to a mathematically sophisticated algorithm the task of producing an optimal apportionment, but attach to it a “certificate of optimality”, that is, describe a simple procedure whereby anybody can check, through some elementary operations, that the seat allocation output by the algorithm is indeed an optimal apportionment. We discuss one such certificate, based on the Max flow- min cut Theorem, relative to a parametric max flow method of ours for BAP.     

Association of Problem Gambling with Type of Gambling Among Italian General Population

The origin of gambling disorders is uncertain; however, research has shown a tendency to focus on specific types of games as a potential important risk factor. The principal aim of this study is to examine the relationships between types of gambling practices and gambling disorder. The data were extracted from IPSAD-Italia^® 2010–2011 (Italian Population Survey on Alcohol and other Drugs), a survey among the Italian general population which collects socio-cultural information, information about the use of drugs, legal substances and gambling habits. In order to identify the “problem gambler” we used the Problem Gambling Severity Index. Three groups are considered in this analysis: no-risk gamblers, low-risk gamblers, moderate-risk/problem gamblers. Type of gambling practice was considered among two types of gambler: one-game players and multi-games players. 1.9 % of multi-game players were considered problem gamblers, only 0.6 % of one-game players were problem gamblers (p < 0.001). The percentage of players who were low and moderate-risk gamblers was approximately double among multi-game players, with 14.4 % low-risk and 5.8 % moderate-risk; compared with 7.7 % low-risk and 2.5 % moderate risk among one-game players. Results of ordinal logistic regression analysis confirmed that higher level of gambling severity was associated with multi-game players (OR = 2.23, p < 0.0001). Video-poker/slot-machines show the highest association with gambling severity among both one-game players and multi-game players, with scores of OR equal to 4.3 and 4.5 respectively. These findings suggest a popular perception of risk associated with this type of gambling for the development of gambling problems.     

Brain Emotion Systems,Personality, Hopelessness,Self/Other Perception,and Gambling Cognition: A Structural Equation Model

The aim of this study was to explore the relations between gambling, brain emotion systems, personality, self/other perception, and hopelessness in an Italian community. Dimensions of gambling, positive and negative emotions, self/other perception, personality and hopelessness were assessed in a community sample of 235 adults aged 19–59 years. Two structural models were tested. We found a significant correlation between problem gambling and impulsivity, which in association with aggressivity and negative personality dimensions may help explain the psychopathology factor, i.e. a latent variable involving neurotic personality, hopelessness, high sensation seeking, low metacognitive responsiveness, and disorganized patterns of interpersonal relationships. These results contribute to develop a theoretical framework of gambling in relation with personality factors and provide a new approach for clinical intervention of problem gambling that relies on a solid multidimensional perspective.