Pros | Cons |
|---|---|
Summarise complex or multi-dimensional issues, in view of supporting decision-makers. | May send misleading policy messages, if they are poorly constructed or misinterpreted. |
Are easier to interpret than trying to find a trend in many separate indicators. | May invite drawing simplistic policy conclusions, if not used in combination with the indicators. |
Facilitate the task of ranking countries on complex issues in a benchmarking exercise. | May lend themselves to instrumental use, if the various stages are not transparent and based on sound statistical or conceptual principles. |
Assess progress of countries over time on complex issues. | The selection of indicators and weights could be the target of political challenge. |
Reduce the size of a set of indicators or include more information within the existing size limit. | May disguise serious failings in some dimensions of the phenomenon, and thus increase the difficulty in identifying the proper remedial action. |
Place issues of countries performance and progress at the centre of the policy arena. | May lead wrong policies, if dimensions of performance that are difficult to measure are ignored. |
Facilitate communication with ordinary citizens and promote accountability. |
Stage | Description |
|---|---|
1. Theoretical framework | Provides the basis for the selection and combination of variables into a meaningful composite indicator under a fitness-for-purpose principle. |
2. Data selection | Should be based on the analytical soundness, measurability, country coverage, and relevance of the indicators to the phenomenon being measured and relationship to each other. The use of proxy variables should be considered when data are scarce. |
3. Imputation of missing data and outliers | Is needed in order to provide a complete and clean dataset (e.g. by means of single or multiple imputation). |
4. Multivariate analysis | Should be used to study the overall structure of the dataset, assess its suitability, and guide subsequent methodological choices (e.g., weighting, aggregation). |
5. Normalization | Should be carried out to render the variables comparable. |
6. Weighting and aggregation | Should be done along the lines of the underlying theoretical framework. |
7. Uncertainty and sensitivity analysis | Should be undertaken to assess the robustness of the composite indicator in terms of e.g., the mechanism for including or excluding an indicator, the normalisation scheme, the imputation of missing data, the choice of weights, the aggregation method. |
8. Back to the data | Is needed to reveal the main drivers for an overall good or bad performance. Transparency is primordial to good analysis and policymaking. |
9. Links to other indicators | Should be made to correlate the composite indicator (or its dimensions) with existing (simple or composite) indicators as well as to identify linkages through regressions. |
10. Visualisation of the results | Should receive proper attention, given that the visualisation can influence (or help to enhance) interpretability. |
Steps and \(\textsf{R}\) packages:
Exploratory Data Analysis (EDA): skimr.
Treatment of outliers and NAs: dlookr.
Assessment of internal consistency using PCA:
FactoMineR.
Normalization of raw indicators: min-max and \(z\)-scores.
Weighting of indicators: equal weights and PCA:
FactoMineR.
Aggregation of indicators: generalized means (\(\beta\) = 0, 0.25, 0.50, 0.75, 1.0), PCA and PCA-equally weightings.
Sensitivity and uncertainty analysis using Monte Carlo
simulations: COINr.
Clustering of NUTS 2 regions using Kohonen self-organizing maps
(SOM): kohonen.
Comparison with other indicators (GDP): eurostat,
mgcv.
Visualization and communication: flexdashboard,
DT, flextable, giscoR,
highcharter, reactable,
tmap.
Variable | NAs | Complete rate | # Levels |
|---|---|---|---|
Country | 0 | 100% | 26 |
NUTS2 region | 0 | 100% | 238 |
Region name | 0 | 100% | 236 |
Dimension | 0 | 100% | 3 |
Component | 0 | 100% | 12 |
NAs: missing values. | |||
1. Composite indicators synthesize many primary variables of diverse nature (environmental, social, economic, technical).
2. This work focuses on the EU-SPI indicator, which measures social progress in EU regions.
3. Methods tested following OECD and EU recommendations in the stages of:
4. Robustness of the EU-SPI indicator verified through:
5. Future research lines:
Social indicators and statistics
Economics and regional policy
Composite indicators