Publication: Women in the Pipeline: A Dynamic Decomposition of Firm Pay Gaps
Loading...
Published
2020-06
ISSN
Date
2020-06-25
Author(s)
Joubert, Clement
Editor(s)
Abstract
This paper proposes a new decomposition method to understand how gender pay gaps arise within firms. The method accounts for pipeline effects, nonstationary environments, and dynamic interactions between pay gap components. This paper assembles a new data set covering all employees at the World Bank Group between 1987 and 2015 and shows that historical differences in the positions for which men and women were hired account for 77 percent of today's average salary difference, dwarfing the roles of entry salaries, salary growth, or retention. Forward simulations show that 20 percent of the total gap can be assigned to pipeline effects that would resolve mechanically with time.
Link to Data Set
Citation
“Joubert, Clement; Das, Jishnu. 2020. Women in the Pipeline: A Dynamic Decomposition of Firm Pay Gaps. Policy Research Working Paper;No. 9295. © World Bank. http://hdl.handle.net/10986/33991 License: CC BY 3.0 IGO.”
Associated URLs
Associated content
Other publications in this report series
Publication Intergenerational Income Mobility around the World(Washington, DC: World Bank, 2025-07-09)This paper introduces a new global database with estimates of intergenerational income mobility for 87 countries, covering 84 percent of the world’s population. This marks a notable expansion of the cross-country evidence base on income mobility, particularly among low- and middle-income countries. The estimates indicate that the negative association between income mobility and inequality (known as the Great Gatsby Curve) continues to hold across this wider range of countries. The database also reveals a positive association between income mobility and national income per capita, suggesting that countries achieve higher levels of intergenerational mobility as they grow richer.Publication Engineering Ukraine’s Wirtschaftswunder(Washington, DC: World Bank, 2025-07-29)As Ukraine emerges from the devastation of war, it faces a historic opportunity to engineer its own Wirtschaftswunder—a productivity-driven economic transformation akin to post-war West Germany. While investment-led growth may offer quick wins, it is efficiency, innovation, and institutional reform that will determine Ukraine’s long-term economic trajectory. Drawing on rich micro-level firm data spanning 25 years, this paper uncovers deep structural distortions that have suppressed creative destruction and productivity in Ukraine. It finds that business dynamism is on the decline, alongside rising market concentration among incumbent businesses, including low productivity state owned enterprises. To inform priorities for reviving business dynamism, this study develops a model of creative destruction drawing on Acemoglu et al. (2018) and Akcigit et al. (2021). The quantitative assessment highlights that policies that discipline entrenched incumbents are the bedrock for reviving business dynamism and engineer Ukraine’s Wirtschaftswunder. Policies targeting specific types of firms have limited efficacy when incumbents run wild.Publication Fiscal Multipliers in Resource-Rich Economies: Evidence from the Gulf Countries(Washington, DC: World Bank, 2025-08-21)This paper utilizes the unique dynamics of fiscal budgeting in countries with a large hydro-carbon sector to estimate fiscal multipliers. The main identifying assumption rests on the idea that exogenously identified global hydrocarbon demand shocks can be considered plausible instruments for the fiscal space of countries in which that space is significantly dictated by hydrocarbon income, with such shocks being uncorrelated with non-hydrocarbon output at the same time. Using a local projection-instrumental variables (LP-IV) framework, the paper estimates that short-run fiscal expenditure multipliers to be in the ballpark of 0.1–0.4. In addition, the findings show that multipliers are at the upper end of this interval during recessions, indicating that fiscal policy in the Gulf countries is particularly effective during economic downturns.Publication Stress Testing Survey to Survey Imputation: Understanding When Poverty Predictions Can Fail(Washington, DC: World Bank, 2025-08-21)Accurate and timely poverty measurement is central to development policy, yet the availability of up-to-date high-quality household survey data remains limited—particularly in countries where poverty is most concentrated. Survey-to-survey imputation has emerged as a practical response to this challenge, allowing practitioners to update poverty estimates using recent surveys that lack direct welfare measures by borrowing information from other comprehensive surveys. A critical review of the method is provided, revisiting its statistical underpinnings and testing its limitations through extensive model-based simulations. Through these simulations, the analysis demonstrates how violations of parameter stability, omitted variable bias, and shifts in survey design can introduce substantial errors—particularly when imputing across time or under economic and structural change. Results show that standard corrections such as re-weighting or covariate standardization may fail to eliminate these biases, especially when imputing across time or under structural change. The performance of alternative model specifications is also evaluated under various methods, including performance under heteroskedastic errors, non-normality. The findings offer practical guidance for practitioners on when survey-to-survey imputation is likely to succeed, when it should be reconsidered, and how to communicate its limitations transparently in the context of poverty monitoring and policy design.Publication The Future of Poverty(Washington, DC: World Bank, 2025-07-15)Climate change is increasingly acknowledged as a critical issue with far-reaching socioeconomic implications that extend well beyond environmental concerns. Among the most pressing challenges is its impact on global poverty. This paper projects the potential impacts of unmitigated climate change on global poverty rates between 2023 and 2050. Building on a study that provided a detailed analysis of how temperature changes affect economic productivity, this paper integrates those findings with binned data from 217 countries, sourced from the World Bank’s Poverty and Inequality Platform. By simulating poverty rates and the number of poor under two climate change scenarios, the paper uncovers some alarming trends. One of the primary findings is that the number of people living in extreme poverty worldwide could be nearly doubled due to climate change. In all scenarios, Sub-Saharan Africa is projected to bear the brunt, contributing the largest number of poor people, with estimates ranging between 40.5 million and 73.5 million by 2050. Another significant finding is the disproportionate impact of inequality on poverty. Even small increases in inequality can lead to substantial rises in poverty levels. For instance, if every country’s Gini coefficient increases by just 1 percent between 2022 and 2050, an additional 8.8 million people could be pushed below the international poverty line by 2050. In a more extreme scenario, where every country’s Gini coefficient increases by 10 percent between 2022 and 2050, the number of people falling into poverty could rise by an additional 148.8 million relative to the baseline scenario. These findings underscore the urgent need for comprehensive climate policies that not only mitigate environmental impacts but also address socioeconomic vulnerabilities.
Journal
Journal Volume
Journal Issue
Collections
Related items
Showing items related by metadata.
Publication A Gender (R)evolution in the Making? Expanding Women's Economic Opportunities in Central America : A Decade in Review(Washington, DC, 2012-01)A Gender Revolution in the Making was produced by the World Bank as a special report on the dichotomy of the economic participation of women in Central America from 1997-2007. Central America made considerable progress during 1997-2006: stronger economic and political stability, overall positive albeit modest economic growth and improvements in socio-economic outcomes. Nonetheless, the panorama for women in the region, and in particular their ability to work and generate income is mixed. Labor force participation of women in Central America remained unchanged over the decade, with one in every two women of working age still not participating economically. This is lower than the rest of Latin America, a region with the lowest labor force participation in the world, although it has improved significantly in recent years. And yet, women in the region have made major advances in closing the gender earnings gaps and increasing their ability to earn income. Women's contribution to overall income generation in Central America rose significantly over the decade. This report aims to identify the factors behind these three trends. However, stagnant labor force participation rates for women contrasted with narrowing earnings gaps and a greater contribution to overall income apparent in Central America from 1997 to 2006.Publication Decomposing the Recent Inequality Decline in Latin America(World Bank, Washington, DC, 2013-12)Over the past decade, 12 of 14 Latin American countries have experienced a reduction in inequality. Based on a series of counterfactual simulations, the observed changes in inequality are decomposed in order to identify the main determinants of inequality. In contrast to methods that focus on aggregate summary statistics, the method adopted in this paper generates counterfactual distributions, so that the analysis can account for changes related to demographics, occupation, labor earnings and transfers, pensions, and other nonlabor income sources. The results show that for the majority of countries in the sample, the most important contributor to the observed decline in inequality has been the relatively strong growth in labor earnings at the bottom of the income distribution. In particular, most of the reduction in inequality can be attributed to an increase in earnings per hour for the bottom of the income distribution. The paper also contributes to the literature on inequality in Latin America by providing the Shapley-Shorrocks value of this decomposition.Publication Poverty and Economic Growth in Egypt, 1995-2000(World Bank, Washington, DC, 2003-06)After a decade of slow economic growth Egypt's rate of growth recovered in the late 1990s, averaging more than five percent a year. But the effect of this growth on poverty patterns has not been systematically examined using consistent, comparable household datasets. In this paper, the authors use the rich set of unit-level data from the most recent Egyptian household surveys (1995-96 and 1999-2000) to assess changes in poverty and inequality between 1995 and 2000. Their analysis is based on household-specific poverty lines that account for the differences in regional prices, as well as differences in the consumption preferences and size and age composition of poor households. The results show that average household expenditures rose in the second half of the 1990s and the poverty rate fell from 20 percent to less than 17 percent. But, in addition to the ongoing divide in the urban-rural standard of living, a new geographical/regional divide emerged in the late 1990s. Poverty was found predominantly among less-educated individuals, particularly those working in agriculture and construction, and among seasonal and occasional workers. These groups could suffer the most from the slowing economic growth evident after 1999-2000.Publication Transitioning to Better Jobs in the Kyrgyz Republic(Washington, DC, 2015-09-18)This report takes an in-depth look at the development of jobs in the Kyrgyz Republic over the past decade to understand why the country has not realized better job outcomes. Drawing on evidence at the macro, household, and firm level, it examines key shortcomings in the current migration-led, remittance-driven development model that have weakened the country’s ability to create sufficient and high-quality employment opportunities and are likely to result in deteriorating job outcomes in the future. The report argues that several broad transformations will be needed to develop engines of growth in the Kyrgyz Republic outside remittances and shift to a better jobs path. The distortions and obstacles that currently prevent the expansion of private sector employment need to be unraveled; macroeconomic, regulatory, and logistical impediments to greater, more diversified export orientation need to be strategically addressed; the compensation of public employees must be reformed to reduce the level of corruption that discourages business growth; and the migration phenomenon, which will be a part of the employment mosaic for at least another decade, must be made to contribute to domestic employment creation and the country’s development.Publication Effectiveness of Interventions Aimed atImproving Women’s Employability and Quality of Work : A Critical Review(World Bank, Washington, DC, 2012-09)This paper examines the effectiveness of a variety of policy interventions that have been tried in developing and transition economies with the goal of improving women's employability and quality of work. The programs include active labor market programs, education and training programs, programs that facilitate work (such as childcare subsidies, parental leave programs and land titling programs), microfinance programs, entrepreneurship and leadership programs, and conditional cash transfer programs. Some of these policy interventions were undertaken to increase employment, some to increase female employment, and some for other reasons. All of these programs have been subjected to impact evaluations of different kinds and some also to rigorous cost-benefit analyses. Many were found to be effective in increasing women's quantity of work as measured by increased rates of labor market participation and number of hours worked. In some cases, the programs also increased women's quality of work, for example, by increasing the capacity for women to work in the formal rather than the informal sector where wages are higher and where women are more likely to have access to health, retirement, and other benefits.
Users also downloaded
Showing related downloaded files
Publication The Container Port Performance Index 2023(Washington, DC: World Bank, 2024-07-18)The Container Port Performance Index (CPPI) measures the time container ships spend in port, making it an important point of reference for stakeholders in the global economy. These stakeholders include port authorities and operators, national governments, supranational organizations, development agencies, and other public and private players in trade and logistics. The index highlights where vessel time in container ports could be improved. Streamlining these processes would benefit all parties involved, including shipping lines, national governments, and consumers. This fourth edition of the CPPI relies on data from 405 container ports with at least 24 container ship port calls in the calendar year 2023. As in earlier editions of the CPPI, the ranking employs two different methodological approaches: an administrative (technical) approach and a statistical approach (using matrix factorization). Combining these two approaches ensures that the overall ranking of container ports reflects actual port performance as closely as possible while also being statistically robust. The CPPI methodology assesses the sequential steps of a container ship port call. ‘Total port hours’ refers to the total time elapsed from the moment a ship arrives at the port until the vessel leaves the berth after completing its cargo operations. The CPPI uses time as an indicator because time is very important to shipping lines, ports, and the entire logistics chain. However, time, as captured by the CPPI, is not the only way to measure port efficiency, so it does not tell the entire story of a port’s performance. Factors that can influence the time vessels spend in ports can be location-specific and under the port’s control (endogenous) or external and beyond the control of the port (exogenous). The CPPI measures time spent in container ports, strictly based on quantitative data only, which do not reveal the underlying factors or root causes of extended port times. A detailed port-specific diagnostic would be required to assess the contribution of underlying factors to the time a vessel spends in port. A very low ranking or a significant change in ranking may warrant special attention, for which the World Bank generally recommends a detailed diagnostic.Publication Digital Progress and Trends Report 2023(Washington, DC: World Bank, 2024-03-05)Digitalization is the transformational opportunity of our time. The digital sector has become a powerhouse of innovation, economic growth, and job creation. Value added in the IT services sector grew at 8 percent annually during 2000–22, nearly twice as fast as the global economy. Employment growth in IT services reached 7 percent annually, six times higher than total employment growth. The diffusion and adoption of digital technologies are just as critical as their invention. Digital uptake has accelerated since the COVID-19 pandemic, with 1.5 billion new internet users added from 2018 to 2022. The share of firms investing in digital solutions around the world has more than doubled from 2020 to 2022. Low-income countries, vulnerable populations, and small firms, however, have been falling behind, while transformative digital innovations such as artificial intelligence (AI) have been accelerating in higher-income countries. Although more than 90 percent of the population in high-income countries was online in 2022, only one in four people in low-income countries used the internet, and the speed of their connection was typically only a small fraction of that in wealthier countries. As businesses in technologically advanced countries integrate generative AI into their products and services, less than half of the businesses in many low- and middle-income countries have an internet connection. The growing digital divide is exacerbating the poverty and productivity gaps between richer and poorer economies. The Digital Progress and Trends Report series will track global digitalization progress and highlight policy trends, debates, and implications for low- and middle-income countries. The series adds to the global efforts to study the progress and trends of digitalization in two main ways: · By compiling, curating, and analyzing data from diverse sources to present a comprehensive picture of digitalization in low- and middle-income countries, including in-depth analyses on understudied topics. · By developing insights on policy opportunities, challenges, and debates and reflecting the perspectives of various stakeholders and the World Bank’s operational experiences. This report, the first in the series, aims to inform evidence-based policy making and motivate action among internal and external audiences and stakeholders. The report will bring global attention to high-performing countries that have valuable experience to share as well as to areas where efforts will need to be redoubled.Publication Global Economic Prospects, June 2025(Washington, DC: World Bank, 2025-06-10)The global economy is facing another substantial headwind, emanating largely from an increase in trade tensions and heightened global policy uncertainty. For emerging market and developing economies (EMDEs), the ability to boost job creation and reduce extreme poverty has declined. Key downside risks include a further escalation of trade barriers and continued policy uncertainty. These challenges are exacerbated by subdued foreign direct investment into EMDEs. Global cooperation is needed to restore a more stable international trade environment and scale up support for vulnerable countries grappling with conflict, debt burdens, and climate change. Domestic policy action is also critical to contain inflation risks and strengthen fiscal resilience. To accelerate job creation and long-term growth, structural reforms must focus on raising institutional quality, attracting private investment, and strengthening human capital and labor markets. Countries in fragile and conflict situations face daunting development challenges that will require tailored domestic policy reforms and well-coordinated multilateral support.Publication Business Ready 2024(Washington, DC: World Bank, 2024-10-03)Business Ready (B-READY) is a new World Bank Group corporate flagship report that evaluates the business and investment climate worldwide. It replaces and improves upon the Doing Business project. B-READY provides a comprehensive data set and description of the factors that strengthen the private sector, not only by advancing the interests of individual firms but also by elevating the interests of workers, consumers, potential new enterprises, and the natural environment. This 2024 report introduces a new analytical framework that benchmarks economies based on three pillars: Regulatory Framework, Public Services, and Operational Efficiency. The analysis centers on 10 topics essential for private sector development that correspond to various stages of the life cycle of a firm. The report also offers insights into three cross-cutting themes that are relevant for modern economies: digital adoption, environmental sustainability, and gender. B-READY draws on a robust data collection process that includes specially tailored expert questionnaires and firm-level surveys. The 2024 report, which covers 50 economies, serves as the first in a series that will expand in geographical coverage and refine its methodology over time, supporting reform advocacy, policy guidance, and further analysis and research.Publication Global Economic Prospects, January 2025(Washington, DC: World Bank, 2025-01-16)Global growth is expected to hold steady at 2.7 percent in 2025-26. However, the global economy appears to be settling at a low growth rate that will be insufficient to foster sustained economic development—with the possibility of further headwinds from heightened policy uncertainty and adverse trade policy shifts, geopolitical tensions, persistent inflation, and climate-related natural disasters. Against this backdrop, emerging market and developing economies are set to enter the second quarter of the twenty-first century with per capita incomes on a trajectory that implies substantially slower catch-up toward advanced-economy living standards than they previously experienced. Without course corrections, most low-income countries are unlikely to graduate to middle-income status by the middle of the century. Policy action at both global and national levels is needed to foster a more favorable external environment, enhance macroeconomic stability, reduce structural constraints, address the effects of climate change, and thus accelerate long-term growth and development.