1 Text summary of review search and extraction process

1.1 WHAT we search for and WHY

We are undertaking a systematic scoping review mapping out the current academic state of the art for policies explicitly or implicitly aimed at reducing inequalities in the world of work. To arrive at a mapping which is as unbiased as possible, we closely follow the scoping review methodology proposed by Arksey and O’Malley (2005) and extended by Pham et al. (2014), as well as those points from the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA, 2020) guidelines that are applicable to scoping reviews.

The goal of this review strategy is to capture any possible coherent mechanisms of policy-making which positively influence the reduction of inequalities in the world of work and reach some measure of clarity on the extent and robustness of evidence in these areas.

ACCOMPANYING SLIDE Section 2.1

To achieve this, we follow the general typologies formulated by ILO for the world of work to find a definition of work, various forms of work and labour market adjacent outcomes to be measured. These provide one ‘cluster’ of terms for the world of work which will later be used for the actual search strategy. A second cluster is provided by terms considering a variety of terms posing a definition of a policy, as well as possible implementations of it in an institutional perspective, a structural perspective and the perspective of personal or collective agency. The last cluster is made up of terms defining the concept of inequality, and terms describing dimensions of vertical and horizontal inequalities.

These three clusters, taken together, then describe all domains which are of special interest in finding policies to reduce inequalities in the world of work.

ACCOMPANYING SLIDE Section 2.2

They, together with specific inclusion criteria, provide the semantic baseline for the search: the terms and concepts for which studies will first be searched and later included or excluded from consideration in the actual search implementation.

1.3 HOW we extract from it

Extraction with the help of the extraction tool follows a strict grid of relevant data to extract from each source identified and screened as relevant. The extraction data to be pulled from each relevant source can be categorized into 4 overall dimensions: publication data, contextual data, results, and statistical data.

ACCOMPANYING SLIDE Section 2.7

Publication data captures the relevant information to uniquely identify the study under review, as well as identify its publication type and location. Results capture the primary of findings of a study, along with any suggested channels or mechanisms of operation, the theory they are basing them on if provided, and any limitations. They also capture the type of intervention under review as well as the types of inequalities, as well as any specific outcome measures.

Contextual data represents all information given within the source as to the intervention’s respective required contexts: what the primary country (or countries) of analysis were, which world region and country income class they represent, which target group was targeted by the intervention if any, which dataset the study at hand made use of if provided and importantly when and for how long the intervention and its study were undertaken.

Statistical data captures all study findings of statistical relevance: its sample size, level of representativeness, significance, but and if it is using relative or absolute indicators. It also captures the design (whether it was undertaken experimentally or observationally) and the methods used by the study.

2 Bullet-points / Possible Slides

2.1 Term cluster areas

  • world of work cluster:
    • Definition of work
    • Forms of work
    • Labour market adjacent outcomes
  • policy cluster:
    • definition of policy
    • institutional implementations
    • structural implementations
    • implementations of personal/collective agency
  • inequality cluster:
    • definition of inequalities
    • vertical inequalities
    • horizontal inequalities

2.2 Inequalities term cluster example

Defintion Vertical inequality Horizontal inequality
inequality income identity
barrier class demographic
advantaged Gini gender
disadvantaged Palma colour
discriminated Theil beliefs
disparity Atkinson racial
horizontal inequality log deviation ethnic
vertical inequality fertility migrant
bottom percentile spatial
top percentile rural
urban
small cities
peripherial cities
age
nationality
ethnicity
health status
disability
characteristics

2.3 Inclusion criteria

Parameter Inclusion criteria Exclusion criteria
Time frame study published in or after 2000 study published before 2000
Study type primary research opinion piece, editorial, commentary, news article, literature review
Study recency most recent publication of study gray literature superseded by white literature publication
Study focus inequality or labour market outcomes as primary outcome (dependent variable) neither inequality nor labour market outcomes as dependent variable
policy measure or strategy as primary intervention (independent variable) no policy measure/strategy as intervention or relationship unclear
specifically relates to some dimension of world of work exists outside world of work for both independent and dependent variables
focus on dimension of inequality in analysis no focus on mention of inequality in analysis

2.5 Identification

  • Database sources:
    • World of Science (Extended Corpus): white literature
    • Google Scholar: possibly relevant grey literature
  • Snowballing:
    • starting from existing relevant reviews contained in initial database results & additional relevant ones
    • all contained citations extracted and added to identified sources
  • Deduplication:
    • automated deduplication for exact source matches
    • manual deduplication for inexact matches or superseding literature

2.6 Screening

  • Repeated sorting out of irrelevant literature:
    • repeated process from far-reading to close-reading (title, abstract, full-text)
    • using inclusion/exclusion criteria for each round of separations
  • Pre-sorting of literature with keyword tagging:
    • reason for exclusion (title, abstract, superseded, or note for full-text reason)
    • types of inequalities, types of policies, types of outcomes measured

2.7 Extraction

  • Extraction of relevant data for current review:
    • from all sources identified as relevant during full-text screening
    • using extraction tool to unify extracted data
  • Relevant data:
    • Publication information (author, year, title, publisher, publication type)
    • Contextual data (country, region, income class, period & length of analysis, target group, dataset)
    • Results data (intervention, inequalities, outcome measures, main findings, channels, limitations)
    • Statistical data (sample size, representativeness, methods, significance, absolute indicator)