Basic Principles of Rough Set Analysis

Bergh, J.C.J.M. van den; Button, Kenneth; Nijkamp, Peter; Pepping, Gerard

doi:10.1007/978-94-015-8865-2_7

Cited by 7 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meta-analysis has become well established in the experimental sciences (see, for example, Cooper and Hedges' 1994 handbook), but has also recently been growing in popularity in economics, particularly in environmental economics (e.g. van den Bergh et al, 1997, andFlorax, 2002a), but also in labour economics. 2 The total number of published applications of meta-analysis in economics now exceeds one hundred.…”

Section: Introductionmentioning

confidence: 99%

A Meta-Analytic Assessment of the Effect of Immigration on Wages

2004

View full text Add to dashboard Cite

In our increasingly interconnected and open world, international migration is becoming an important socioeconomic phenomenon for many countries. Since the early 1980s, many studies have been undertaken of the impact of immigration on host labour markets. Borjas (2003) noted that the estimated effect of immigration on the wage of native workers varies widely from study to study and sometimes even within the same study. In addition, these effects cluster around zero. Such a small effect is a rather surprising outcome, given that in a closed competitive labour market an increase in labour supply may be expected to exert a downward pressure on wages. We revisit this issue by applying meta-analytic techniques to a sample of eighteen papers, which altogether generated 348 estimates of the percentage change in the wage of a native worker with respect to a one percentage point increase in the ratio of immigrants over native workers. While many studies in our sample employ US data, estimates are also obtained from Germany,

show abstract

Section: Introductionmentioning

confidence: 99%

A Meta-Analytic Assessment of the Effect of Immigration on Wages

2004

View full text Add to dashboard Cite

show abstract

“…In our comparative study we have developed a database of incubators from an existing body of knowledge, often incorporated in case studies; in other words we have adopted a meta-analysis approach. The use of meta-analysis in social science has grown tremendously in recent yearsöwitness the many publications about this methodology since the early 1990s (eg Cook et al, 1992;Stuhlmacher and Gillespie, 2005;van den Bergh et al, 1998). Basically, the meta-analytic approach comprises the systematic application of a range of quantitative methods to assess common characteristics and variations across a set of separate but largely similar case studies on more or less the same phenomenon.…”

Section: Selection Of Incubators and Data Validity Issuesmentioning

confidence: 99%

Technology Incubators and Knowledge Networks: A Rough Set Approach in Comparative Project Analysis

Soetanot

Geenhuizen

2007

Environ Plann B Plann Des

View full text Add to dashboard Cite

Technology incubators have emerged in many places as a tool in facilitating the establishment and survival of high-technology firms. Some incubators develop quickly and produce a fast-increasing number of new ventures, while others remain stable in size. Despite a growing public investment in technology incubators, systematic studies of the factors determining their growth are scarce, meaning that policy decisions are taken without sufficient practical insights into critical conditions for growth. In response to that situation, we explore several factors in determining differences in growth patterns. We use a quantitative approach derived from the field of artificial intelligence that matches with meta-analysis and qualitative (and sometimes fuzzy) data—that is, rough set analysis. Benefits and challenges of rough set analysis are discussed, including experience with a stepwise procedure with various accuracy checks. The findings suggest that a strong performance of incubators mainly rests on diversity in stakeholder involvement and a location in nonmetropolitan areas. Rough set analysis turns out to be a helpful tool in comparative project analysis, but there is still a need for standardization of measures used in the interpretation of the results.

show abstract

“…Applying meta-analyses in the fields of environmental valuation has been popular since the 1990s (e.g., [ 11 , 12 , 13 ]). Besides solving methodological problems and issues (e.g., how the elicited values are linked to the application of valuation methods), the main aim of meta-analyses is to enhance the knowledge about certain ecosystems in a joint framework.…”

Section: Introductionmentioning

confidence: 99%

Ecosystem Services of Mangrove Forests: Results of a Meta-Analysis of Economic Values

Getzner

Islam

2020

IJERPH

View full text Add to dashboard Cite

Mangrove forests are paramount for sustaining and enhancing ecosystem services benefitting both local and regional communities, and the global environment. Scholars have long studied the values of ecosystem services of mangrove forests. However, the number of recent primary studies monetizing ecosystem services is rather limited. This paper ascertains the values of ecosystem services of 66 primary valuation studies with a total of 250 observations. The results indicate that the range of values is substantially wide. This range cannot be explained sufficiently by the various differences of the studies, as the explanatory power of the econometric estimations is low. Main influential factors on the values of ecosystem services are the elicitation methods, the types of ecosystem services considered, and the conservation status of the respective mangrove forest as Ramsar site. The results stress the significant economic values of ecosystem services of mangrove forests and the importance for conservation management. However, the results also caution against a direct transfer of benefits between sites. The substantial variety of site and country specifics warrants the implementation of separate, original valuation studies.

show abstract

Basic Principles of Rough Set Analysis

Cited by 7 publications

References 0 publications

A Meta-Analytic Assessment of the Effect of Immigration on Wages

A Meta-Analytic Assessment of the Effect of Immigration on Wages

Technology Incubators and Knowledge Networks: A Rough Set Approach in Comparative Project Analysis

Ecosystem Services of Mangrove Forests: Results of a Meta-Analysis of Economic Values

Contact Info

Product

Resources

About