Many of the measures on quantifying progress by countries towards reducing income inequality have focused on indices that measure trends in inequality over time (Gini coefficient for example) and compare countries without considering the differences between their socioeconomic structures.

However, these indices do not paint the complete picture about how countries are performing, especially when compared to one other in achieving Sustainable Development Goals and what policies and investments may be needed to support them. This research project will provide an alternative measurement of income inequality by taking into account the developing countries’ structural or predetermined conditions (mineral assets, type of institutions etc.) in assessing their progress towards reducing inequality and the impacts of climate change. 

The project focuses on the following objectives: 

1. Firstly, it will compare each country with its potential to reduce income inequalities by measuring the scope for improvement for each country at every year. This will allow a better understanding of the key factors that hinder a country’s effort and performance in reducing inequalities and of the policy and investments that are needed to tackle inequalities more efficiently.
2. Secondly, it will investigate how climate – temperature, precipitation and extreme weather events– influence the efficiency of countries in combining inputs to reduce inequality.
3. Thirdly, it will look at adaptation or intensification effects across regions, particularly in LDCs and SIDS and will identify the needed scale of investments.

Building on a panel database on 145 countries, including countries from Least Developed Countries (LDCs) and Small Island Developing States (SIDS) from 2000-2020, the project will use a stochastic frontier approach, an economic modelling technique, to estimate feasible frontiers for income inequality for each country and year.

You will find below the different research papers related to this project:

• Reducing Inequalities Despite Climate change? Rethinking Progress Towards Reducing Income Inequalities and the Impact of Climate Change in Developing Countries

While there is mounting evidence that the Covid-19 pandemic has increased socioeconomic inequality, there is still a need to understand the exact channels of impact and what role the policy response has played in different contexts. It is also necessary for governments to be clear about the efficiency of the type of policies they have implemented throughout this period, in terms of the redistributive and/or regressive effect both from an inequality and poverty perspective. Indeed, we know that the amount of additional social spending (excluding health) implemented during the pandemic reached almost 3% of GDP in Colombia and only 0,2% in Mexico. However, research has not yet demonstrated whether the redistributive policies introduced by the Mexican and Colombian governments in response to the Covid-19 crisis have had any positive effect on the distribution of economic and social resources in these two countries.

The project will seek to understand what has been the redistributive impact of social and fiscal policy in Mexico and Colombia, in the context of the policies implemented during the Covid-19 pandemic.

This research project will be conducted as follows: 

1. Using the framework of the Commitment to Equity (CEQ) methodology, an analysis aiming to differentiate what has been the progressivity or regressivity of the policies implemented during the Covid-19 pandemic will be conducted. This analysis will take into account the main beneficiary groups of these policies and will include a comparison between the budget amount and the efficiency of the policies identified in terms of inequality and poverty reduction.  
2. A desktop analysis of the decision-making will also be carried out to understand how the redistributive effects of the policies implemented were envisaged by the governments. 

The results of this project are presented in the following research paper: Promoting a More Progressive Approach - Evaluating the Impact of Social and Fiscal Policies in Mexico and Colombia amidst the Covid-19 Pandemic (2025)

This research paper analyzes the redistributive impact of some fiscal policies and social programmes (direct taxes and transfers) before and after the pandemic Crisis in Mexico and Colombia, following the CEQ methodology. 

Download the paper