<?xml version="1.0" encoding="UTF-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <title>EconStor Collection:</title>
  <link rel="alternate" href="https://hdl.handle.net/10419/269260" />
  <subtitle />
  <id>https://hdl.handle.net/10419/269260</id>
  <updated>2026-04-28T11:39:58Z</updated>
  <dc:date>2026-04-28T11:39:58Z</dc:date>
  <entry>
    <title>From phone access to food markets: How mobile connectivity is transforming rural livelihoods in West Africa</title>
    <link rel="alternate" href="https://hdl.handle.net/10419/322562.2" />
    <author>
      <name>Cariolle, Joël</name>
    </author>
    <author>
      <name>Carroll, David Alexander</name>
    </author>
    <id>https://hdl.handle.net/10419/322562.2</id>
    <updated>2026-02-20T14:04:54Z</updated>
    <published>2026-01-01T00:00:00Z</published>
    <summary type="text">Title: From phone access to food markets: How mobile connectivity is transforming rural livelihoods in West Africa
Authors: Cariolle, Joël; Carroll, David Alexander
Abstract: This paper shows that mobile connectivity transforms household livelihoods in ways that foster food market integration in WAEMU countries. Using cross-sectional data on nearly 60,000 households and 146 food products traded across 5,000 enumeration areas in eight member states (2018-2019), the authors combine dyadic and instrumental-variable estimations to identify a demand-led process of spatial food price integration. Dyadic results show that connectivity operates through a spatially layered mechanism: supply-side arbitrage dominates across distant markets and for perishable products, while at local scales price convergence takes the form of a rural-urban catch-up, indicating demand-side adjustments. Household-level analysis supports this mechanism, showing that mobile ownership in covered rural areas increases food purchases and reduces self-consumption, driven by mobile money use and diversification into non-agricultural activities. However, non-adopters in the same locations reduce spending, suggesting negative externalities from higher local prices and limited income gains, and hence heterogeneous welfare effects of connectivity. The update includes the addition of econometric tests of the effect of connectivity on the spatial dispersion of food prices, improvements to the statistical treatment of certain variables used in the analysis, and a reorganisation of the paper's content.</summary>
    <dc:date>2026-01-01T00:00:00Z</dc:date>
  </entry>
  <entry>
    <title>L' UEMOA à la croisée des chemins en matière monétaire? Une contribution à la réflexion sur son régime de change</title>
    <link rel="alternate" href="https://hdl.handle.net/10419/322576" />
    <author>
      <name>Cabrillac, Bruno</name>
    </author>
    <author>
      <name>Guillaumont, Patrick</name>
    </author>
    <author>
      <name>Guillaumont Jeanneney, Sylviane</name>
    </author>
    <author>
      <name>Sévérino, Jean-Michel</name>
    </author>
    <id>https://hdl.handle.net/10419/322576</id>
    <updated>2025-08-01T01:44:11Z</updated>
    <published>2025-01-01T00:00:00Z</published>
    <summary type="text">Title: L' UEMOA à la croisée des chemins en matière monétaire? Une contribution à la réflexion sur son régime de change
Authors: Cabrillac, Bruno; Guillaumont, Patrick; Guillaumont Jeanneney, Sylviane; Sévérino, Jean-Michel
Abstract: Le système monétaire de l'Union économique et monétaire ouest-africaine (UEMOA) est caractérisé par une monnaie unique, le franc CFA d'Afrique de l'Ouest (XOF). Son ancre est un taux de change fixe vis à vis de l'euro. La France apporte une garantie illimitée et inconditionnelle à ce régime de change. Malgré les réformes intervenues en 2019 qui ont supprimé la participation française au sein des institutions de l'Union monétaire, l'obligation de dépôt d'une partie des réserves auprès du Trésor français et qui ont ouvert la porte à une modification du nom de la monnaie, ce système fait l'objet aujourd'hui encore de critiques, écono- miques parfois, politiques et émotionnelles plus souvent.</summary>
    <dc:date>2025-01-01T00:00:00Z</dc:date>
  </entry>
  <entry>
    <title>Loans, link and leadership: Political change and borrower discouragement in connected firms</title>
    <link rel="alternate" href="https://hdl.handle.net/10419/322572" />
    <author>
      <name>Bertrand, Jérémie</name>
    </author>
    <author>
      <name>Léon, Florian</name>
    </author>
    <author>
      <name>Perrin, Caroline</name>
    </author>
    <id>https://hdl.handle.net/10419/322572</id>
    <updated>2025-08-01T01:44:17Z</updated>
    <published>2025-01-01T00:00:00Z</published>
    <summary type="text">Title: Loans, link and leadership: Political change and borrower discouragement in connected firms
Authors: Bertrand, Jérémie; Léon, Florian; Perrin, Caroline
Abstract: This paper examines how political leaders change moderates the impact of corporate political activity (CPA) on borrower discouragement, using a global dataset of 24,167 firms. While CPA generally reduces discouragement, its effectiveness is significantly diminished during political transitions, as the "know-who" channel becomes unreliable.</summary>
    <dc:date>2025-01-01T00:00:00Z</dc:date>
  </entry>
  <entry>
    <title>Effective tax burden on mobile network operators in Africa</title>
    <link rel="alternate" href="https://hdl.handle.net/10419/322569" />
    <author>
      <name>Bamba, Daouda</name>
    </author>
    <author>
      <name>Dama, Alou Adessé</name>
    </author>
    <author>
      <name>Graziosi, Grégoire Rota</name>
    </author>
    <id>https://hdl.handle.net/10419/322569</id>
    <updated>2025-08-01T01:44:03Z</updated>
    <published>2025-01-01T00:00:00Z</published>
    <summary type="text">Title: Effective tax burden on mobile network operators in Africa
Authors: Bamba, Daouda; Dama, Alou Adessé; Graziosi, Grégoire Rota
Abstract: This study presents a comprehensive analysis of the tax burden on the mobile telecommunications sector across twenty-nine African countries, encompassing both general taxation and sector-specific levies. To conduct this assessment, we develop a model of a representative mobile network operator, referred to as TELCO, and compute its Average Effective Tax Rate (AETR) by incorporating both standard tax obligations and industry-specific fiscal charges. The average AETR is significantly high, ranging from 77 percent to 116 percent (or 44 percent to 83 percent when excluding license fees), depending on the assumed indirect tax incidence. Notably, the AETR exhibits a regressive pattern, whereby the relative tax burden decreases as gross profitability rises. This regressivity is largely attributable to the structural design of the tax system, which relies predominantly on indirect taxation. A comparative analysis of the AETR across three sectors-telecommunications, a standard firm, and the gold mining industry-reinforces these findings. TELCO's AETR is higher in each studied country except in Botswana. This excessive tax burden is primarily driven by mobile-specific taxation, particularly ad quantum taxes levied on telecommunications usage, such as per-minute charges on voice calls or per-megabyte fees on data consumption. Given the sector's critical role in economic development and digital inclusion, these findings raise concerns regarding the long-term implications of such a tax structure on investment, market expansion, and consumer affordability.</summary>
    <dc:date>2025-01-01T00:00:00Z</dc:date>
  </entry>
</feed>

