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PRWP

Reproducibility package for Striving For Economic Security: Emerging Middle Class In The East Asia And Pacific Region

2025
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Reference ID
RR_WLD_2025_457
DOI
https://doi.org/10.60572/sy4m-nz07
Author(s)
Sailesh Tiwari, Veronica Sonia Montalva Talledo, Kwabena Krah
Collections
World Bank Policy Research Working Papers
Metadata
JSON
Created on
Nov 19, 2025
Last modified
Jan 23, 2026
  • Project Description
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  • Description
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  • Citation
  • Overview

    Abstract

    East Asia and Pacific region (EAP) has made remarkable progress on poverty reduction, transforming the economic lives of hundreds of millions of people. With growth prospects dimmer in a world that is increasingly polarized, the question of what it will take to convert the success in poverty reduction into a similar success in growing and nurturing the emergent middle class has become critical for the region. Providing an updated definition of middle class that is grounded in the concept of economic security, this paper presents new evidence on the size, evolution, and characteristics of the region’s middle class. Results show that around a third of the region’s population belongs to the middle class while more than half still live in relative poverty and vulnerability. From a global perspective, the region stands out for the fastest rate of expansion of the middle-class, but China accounts for a large share of this progress. In fact, excluding China, middle-class growth in the rest of the region has stalled in recent years. A larger share of the region’s poor today live in urban areas than a decade earlier (47 percent vs 34 percent) suggesting a marked progress on rural convergence. Still, urban areas continue to provide better prospects for upward mobility into the middle class (44 percent) than rural areas (22 percent). Jobs have been pivotal in driving middle-class growth in the region and future mobility prospects will continue to depend on countries being able to generate more and better-quality jobs. Improving quality of services and closing the remaining gaps across economic classes will be crucial for building human capital and ensuring upward mobility for all. This will also necessitate and reinforce the emerging middle class’s commitment to the social contract, including greater tax contributions.

    Reproducibility Package

    Scripts
    Readme Get Reproducibility Package
    Link: https://reproducibility.worldbank.org/catalog/406/download/1272/README.pdf
    Reproducibility package for Striving For Economic Security: Emerging Middle Class In The East Asia And Pacific Region
    File name
    RR_WLD_2025_457
    Zip package
    RR_WLD_2025_457.zip
    Title
    Reproducibility package for Striving For Economic Security: Emerging Middle Class In The East Asia And Pacific Region
    Date
    2025-11
    Dependencies
    Stata dependencies are listed in the ado folder.
    Instructions
    See README in reproducibility package.
    Notes
    Computational reproducibility verified by Development Impact (DECDI) Analytics team, World Bank.
    Source code repository
    Repository name URI
    Reproducible Research Repository (World Bank) https://reproducibility.worldbank.org
    Software
    Stata
    Name
    Stata
    Version
    18.5 MP

    Reproducibility

    Technology environment

    Paper exhibits were reproduced on a computer with the following specifications:
    • OS: Windows 11 Enterprise, version 24H2
    • Processor: Intel(R) Core(TM) Ultra 7 165U (2.10 GHz)
    • Memory available: 32 GB

    Technology requirements

    Runtime: 30 minutes.

    Reproduction instructions

    1. Access the data: several of the datasets required to run the reproducibility package are restricted and not included in the reproducibility package. Users need to gain access to the data before being able to run the entire code. See the section Datasets for more information.
    2. Run the code: Change the file path in the do-file "_Master.do" and run it.

    Since not all the data are included, the package includes the results produced in the reproducibility verification. These files can be used to review the results presented in the paper.

    Data

    Datasets
    Harmonized official household surveys - Malaysia
    Name
    Harmonized official household surveys - Malaysia
    Note
    Source: World Bank. Data was obtained from the World Bank Malaysia Country Office Poverty Economist. All data files are listed in the README (28 in total). Data was accessed in July 2025.
    Access policy
    Data access was granted directly to the study authors by the data managers. It was obtained with a custom data license that does not allow for redistribution and it is not included in the reproducibility package.
    Citation
    World Bank. n.d. "Harmonized official household surveys - Malaysia" [dataset]. Unpublished data. Accessed July 2025.
    Harmonized official household surveys - Viet Nam and Pacific Island Countries
    Name
    Harmonized official household surveys - Viet Nam and Pacific Island Countries
    Note
    Source: World Bank. Data was accessed using the WB-internal Stata package DataLibWeb, after obtaining approval from the Viet Nam and Pacific Island World Bank Poverty Economists. All data files are listed in the README (103 in total). Data was accessed in July 2025.
    Access policy
    Data access was granted directly to the study authors by the data managers. It was obtained with a custom data license that does not allow for redistribution and it is not included in the reproducibility package.
    Citation
    World Bank. n.d. "Harmonized official household surveys - Viet Nam and Pacific Island Countries" [dataset]. Unpublished data. Accessed July 2025.
    Harmonized official household surveys - Indonesia, Lao PDR, Mongolia, Philippines, Myanmar, Thailand, and Timor-Leste
    Name
    Harmonized official household surveys - Indonesia, Lao PDR, Mongolia, Philippines, Myanmar, Thailand, and Timor-Leste
    Note
    Source: World Bank. Data was accessed using the WB-internal Stata package DataLibWeb, after obtaining approval from the East Asia and Pacific Team for Statistical Development. All data files are listed in the README (177 in total). Data was accessed in July 2025.
    Access policy
    Data access was granted directly to the study authors by the data managers. It was obtained with a custom data license that does not allow for redistribution and it is not included in the reproducibility package.
    Citation
    World Bank. n.d. "Harmonized official household surveys - Indonesia, Lao PDR, Mongolia, Philippines, Myanmar, Thailand, and Timor-Leste" [dataset]. Unpublished data. Accessed July 2025.
    China Family Panel Survey
    Name
    China Family Panel Survey
    Note
    Source: Institute of Social Science Survey, Peking University. All data files are listed in the README (13 in total). Data was accessed in February 2024.
    Access policy
    Data access requires human approval and is not included in the reproducibility package.
    Data URL
    https://www.isss.pku.edu.cn/cfps/en/data/public/index.htm?CSRFT=36YT-2FOZ-J7IP-RZ2Z-6711-PRL4-R17E-A273
    Citation
    Institute of Social Science Survey, Peking University. n.d. "China Family Panel Survey" [dataset]. Accessed from https://www.isss.pku.edu.cn/cfps/en/data/public/index.htm?CSRFT=36YT-2FOZ-J7IP-RZ2Z-6711-PRL4-R17E-A273. Accessed February 2024.
    China Synthetic Income Distribution
    Name
    China Synthetic Income Distribution
    Note
    Source: World Bank, DECDA. All data files are listed in the README (60 in total). Data was obtained from the World Bank China Country Office Poverty Economist. Data was accessed in September 2025.
    Access policy
    Data access was granted directly to the study authors by the data managers. It was obtained with a custom data license that does not allow for redistribution and it is not included in the reproducibility package.
    Citation
    World Bank. n.d. "China Synthetic Income Distribution" [dataset]. Unpublished data. Accessed September 2025.
    Myanmar 2024 Household Phone Survey
    Name
    Myanmar 2024 Household Phone Survey
    Note
    Source: World Bank. Data was obtained from the World Bank Myanmar Poverty Economist. Data files: "01-data/01-source-data/Inputs_Projections/Phone_Surveys2024.dta", "01-data/01-source-data/Inputs_Projections/povrates_2024_phonesurveys.dta". Data was accessed in September 2025.
    Access policy
    Data access was granted directly to the study authors by the data managers. It was obtained with a custom data license that does not allow for redistribution and it is not included in the reproducibility package.
    Citation
    World Bank. n.d. "Myanmar 2024 Household Phone Survey" [dataset]. Unpublished data. Accessed September 2025.
    Consumer Price Indices and Purchase Parity Power Data
    Name
    Consumer Price Indices and Purchase Parity Power Data
    Note
    Source: World Bank. Data was accessed using the WB-internal Stata package DataLibWeb (see details in the README). Data file: "01-data/01-source-data/HH_surveys/_cpi/Final_CPI_PPP_to_be_used_v13.dta". Accessed in September 2025.
    Access policy
    Data access was granted directly to the study authors. It was obtained with a custom data license that does not allow for redistribution and it is not included in the reproducibility package.
    Citation
    World Bank. n.d. "Consumer Price Indices and Purchase Parity Power Data" [dataset]. Unpublished data. Accessed September 2025.
    Poverty and Inequality Indicators
    Name
    Poverty and Inequality Indicators
    Note
    Source: World Bank. Data was accessed using the "pip" Stata package (see README for details). Data file: "01-data/01-source-data/z.Other/pip_regional_allpovlines.dta" Accessed in September 2025.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    CC-BY 4.0 with additional terms specified in the license URL
    License URL
    https://www.worldbank.org/en/about/legal/terms-of-use-for-datasets
    Data URL
    https://pip.worldbank.org/
    Citation
    World Bank. n.d. "Poverty and Inequality Indicators" [dataset]. Retrieved from pip (Stata package). Accessed September 2025.
    Word Development Indicators
    Name
    Word Development Indicators
    Note
    Source: World Bank. Data was accessed using the Stata package "wbopendata" (see README for details). Data file: "01-data/01-source-data/z.Other/wbopendata_2025_09_28.dta", "01-data/01-source-data/WVS/national_indicators.dta". Accessed in September 2025.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    CC-BY 4.0 with additional terms specified in the license URL
    License URL
    https://www.worldbank.org/en/about/legal/terms-of-use-for-datasets
    Data URL
    https://databank.worldbank.org/source/world-development-indicators
    Citation
    World Bank. n.d. "World Development Indicators" [dataset]. Retrieved from wbopendata (Stata package). Accessed September 2025.
    Provincial cost of living data for China - Supplementary data for Spatial Price Differences in China: Estimates and Implications
    Name
    Provincial cost of living data for China - Supplementary data for Spatial Price Differences in China: Estimates and Implications
    Note
    Source: Brandt, L., Holz, C. A. Data file: "01-data/01-source-data/HH_surveys/CHN/Provincial Cost of Living from Brandt and Holz EDCC 2006 - v2.xlsx". Data was accessed in April 2024.
    Access policy
    Data is publicly available and included in the reproducibility package.
    Data URL
    https://www.journals.uchicago.edu/doi/suppl/10.1086/505722
    Citation
    Brandt, L., Holz, C. A. 2006. "Provincial cost of living data for China - Supplementary data for Spatial Price Differences in China: Estimates and Implications" [dataset]. Downloaded from https://www.journals.uchicago.edu/doi/suppl/10.1086/505722. Accessed April 2024.
    GDP and Private Consumption Projections for EAP countries
    Name
    GDP and Private Consumption Projections for EAP countries
    Note
    Source: World Bank. Data was manually compiled from the report "Macro Poverty Outlook: Country-by-country Analysis and Projections for the Developing World" (https://thedocs.worldbank.org/en/doc/c6aceb75bed03729ef4ff9404dd7f125-0500012021/related/mpo-eap.pdf). Data file: "01-data/01-source-data/Inputs_Projections/00.MFMODcsv_2025-09-15.dta". Data was accessed in October 2025.
    Access policy
    Data is publicly available and included in the reproducibility package.
    Citation
    World Bank. 2025. "GDP and Private Consumption Projections for EAP countries" [dataset]. Retrieved from "Macro Poverty Outlook: Country-by-country Analysis and Projections for the Developing World" (https://thedocs.worldbank.org/en/doc/c6aceb75bed03729ef4ff9404dd7f125-0500012021/related/mpo-eap.pdf). Accessed October 2025.
    GDP projections from World Economic Outlook
    Name
    GDP projections from World Economic Outlook
    Note
    Source: International Monetary Fund. Data was manually compiled from the report "World Economic Outlook Update, July 2025: Global Economy: Tenuous Resilience amid Persistent Uncertainty" (https://https://www.imf.org/en/publications/weo/issues/2025/07/29/world-economic-outlook-update-july-2025). Data file: "01-data/01-source-data/Inputs_Projections/00.Input_data_several_sources_2025-09-15", sheet: "WEO_Data_Stata". Data was accessed in July 2025.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License URL
    https://www.imf.org/en/about/copyright-and-terms#terms
    Citation
    International Monetary Fund. 2025. "GDP projections from World Economic Outlook" [dataset]. Retrieved from "World Economic Outlook Update, July 2025: Global Economy: Tenuous Resilience amid Persistent Uncertainty" (https://https://www.imf.org/en/publications/weo/issues/2025/07/29/world-economic-outlook-update-july-2025). Accessed July 2025.
    Population Estimates and Projections
    Name
    Population Estimates and Projections
    Access policy
    Source: World Bank. Data file: "01-data/01-source-data/Inputs_Projections/00.Input_data_several_sources_2025-09-15", sheet: "WDI_pop_Stata". Accessed in August 2025.
    License
    CC-BY 4.0 with additional terms specified in the license URL
    License URL
    https://www.worldbank.org/en/about/legal/terms-of-use-for-datasets
    Data URL
    https://databank.worldbank.org/source/population-estimates-and-projections
    Citation
    World Bank. n.d. "Population Estimates and Projections" [dataset]. Downloaded from https://databank.worldbank.org/source/population-estimates-and-projections. Accessed August 2025.
    World Values Survey
    Name
    World Values Survey
    Note
    Source: World Values Survey Association.
    Access policy
    Data is publicly available but does not allow redistribution and it is not included in the reproducibility package. Data was downloaded for each country and year individually, organized by country and year in the folder "01-data/01-source-data/WVS/", and renamed to "WVS_{year}.dta". All data files are listed in the README (64 in total). Data was accessed in June 2024. Dataset version accessed was 5.0 and might not correspond to the version currently available.
    License URL
    https://www.worldvaluessurvey.org/WVSDocumentationWV7.jsp
    Data URL
    https://www.worldvaluessurvey.org/WVSDocumentationWV7.jsp
    Citation
    Haerpfer, C., Inglehart, R., Moreno, A., Welzel, C., Kizilova, K., Diez-Medrano J., M. Lagos, P. Norris, E. Ponarin & B. Puranen (eds.). 2022. "World Values Survey: Round Seven – Country-Pooled Datafile Version 5.0" [dataset]. Madrid, Spain & Vienna, Austria: JD Systems Institute & WVSA Secretariat. Downloaded from https://www.worldvaluessurvey.org/WVSDocumentationWV7.jsp Accessed June 2024.
    Data statement

    Some data is restricted and has not been included in the reproducibility package. For more details, please refer to the README file.

    Description

    Output
    Striving For Economic Security: Emerging Middle Class In The East Asia And Pacific Region
    Type
    Working Paper
    Title
    Striving For Economic Security: Emerging Middle Class In The East Asia And Pacific Region
    Description
    Policy Research Working Papers (PRWP)
    Authors
    Author Affiliation Email
    Sailesh Tiwari World Bank stiwari@worldbank.org
    Veronica Sonia Montalva Talledo World Bank vmontalvatalledo@worldbank.org
    Kwabena Krah Independent Consultant kkrah26@gmail.com
    Date of production

    2025-11-10

    Scope and coverage

    Geographic locations
    Location Code
    World WLD
    East Asia and Pacific EAP
    Keywords
    Economic Mobility Middle Class Jobs

    Disclaimer

    Disclaimer

    The materials in the reproducibility packages are distributed as they were prepared by the staff of the International Bank for Reconstruction and Development/The World Bank. The findings, interpretations, and conclusions expressed in this event do not necessarily reflect the views of the World Bank, the Executive Directors of the World Bank, or the governments they represent. The World Bank does not guarantee the accuracy of the materials included in the reproducibility package.

    Access and rights

    License
    Name URI
    Modified BSD3 https://opensource.org/license/bsd-3-clause/

    Contacts

    Contacts
    Name Affiliation Email
    Sailesh Tiwari World Bank stiwari@worldbank.org
    Reproducibility WBG World Bank reproducibility@worldbank.org

    Information on metadata

    Producers
    Name Abbreviation Affiliation Role
    Reproducibility WBG DECDI World Bank - Development Impact Department Verification and preparation of metadata
    Date of Production

    2025-11-10

    Document version

    1

    Citation

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