Skip to Main Content
HBS Home
  • About
  • Academic Programs
  • Alumni
  • Faculty & Research
  • Baker Library
  • Giving
  • Harvard Business Review
  • Initiatives
  • News
  • Recruit
  • Map / Directions
Working Knowledge
Business Research for Business Leaders
  • Browse All Articles
  • Popular Articles
  • Cold Call Podcast
  • Managing the Future of Work Podcast
  • About Us
  • Book
  • Leadership
  • Marketing
  • Finance
  • Management
  • Entrepreneurship
  • All Topics...
  • Topics
    • COVID-19
    • Entrepreneurship
    • Finance
    • Gender
    • Globalization
    • Leadership
    • Management
    • Negotiation
    • Social Enterprise
    • Strategy
  • Sections
    • Book
    • Podcasts
    • HBS Case
    • In Practice
    • Lessons from the Classroom
    • Op-Ed
    • Research & Ideas
    • Research Event
    • Sharpening Your Skills
    • What Do You Think?
    • Working Paper Summaries
  • Browse All
    Inventory Management for Mobile Money Agents in the Developing World
    26 Jun 2017Working Paper Summaries

    Inventory Management for Mobile Money Agents in the Developing World

    by Karthik Balasubramanian, David F. Drake, and Douglas Fearing
    Mobile money agents in the developing world face a key inventory management challenge: How much cash and e-float should be held to minimize both stockouts and excess working capital? The authors develop two inventory models and show substantial inventory cost reduction with a large dataset of East African mobile money transactions.
    LinkedIn
    Email

    Author Abstract

    Mobile money systems, platforms built and managed by mobile network operators to allow money to be stored as digital currency, have burgeoned in the developing world as a mechanism to transfer money electronically. Mobile money agents exchange cash for electronic value and vice versa, forming the backbone of an emerging electronic currency ecosystem that has potential to connect millions of poor and “unbanked" people to the formal financial system. Unfortunately, low service levels due to agent inventory management are a major impediment to the further development of these ecosystems. This paper describes models for the agent's inventory problem, unique in that sales of electronic value (cash) correspond to an equivalent increase in inventory of cash (electronic value). This paper presents a base inventory model and an analytical heuristic that are used to determine optimal stocking levels for cash and electronic value given an agent's historical demand. When tested with a large sample of transaction-level data provided by an East African mobile operator, both the base model and the heuristic improved agent profitability by reducing inventory costs (defined here as the sum of stockout losses and cost of capital associated with holding inventory). The heuristic increased estimated agent profits by 15% relative to profits realized through agents’ actual decisions, while also offering substantial computational advantages relative to the base model.

    Paper Information

    • Full Working Paper Text
    • Working Paper Publication Date: June 2017
    • HBS Working Paper Number: HBS Working Paper #17-109
    • Faculty Unit(s): Technology and Operations Management
      Trending
        • 25 Jan 2022
        • Research & Ideas

        More Proof That Money Can Buy Happiness (or a Life with Less Stress)

        • 25 Feb 2019
        • Research & Ideas

        How Gender Stereotypes Kill a Woman’s Self-Confidence

        • 08 Sep 2022
        • Book

        Gen Xers and Millennials, It’s Time To Lead. Are You Ready?

        • 28 Mar 2023
        • Research & Ideas

        The FDA’s Speedy Drug Approvals Are Safe: A Win-Win for Patients and Pharma Innovation

        • 17 May 2017
        • Research & Ideas

        Minorities Who 'Whiten' Job Resumes Get More Interviews

    Find Related Articles
    • Financing and Loans
    • Banks and Banking
    • Currency
    • Mobile Technology
    • Market Platforms
    • Developing Countries and Economies
    • Supply Chain Management
    • Financial Services
    • Banking

    Sign up for our weekly newsletter

    Interested in improving your business? Learn about fresh research and ideas from Harvard Business School faculty.
    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
    ǁ
    Campus Map
    Harvard Business School Working Knowledge
    Baker Library | Bloomberg Center
    Soldiers Field
    Boston, MA 02163
    Email: Editor-in-Chief
    →Map & Directions
    →More Contact Information
    • Make a Gift
    • Site Map
    • Jobs
    • Harvard University
    • Trademarks
    • Policies
    • Accessibility
    • Digital Accessibility
    Copyright © President & Fellows of Harvard College