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Insurance Networks and Poverty Traps
Poor households regularly borrow and lend to smooth consumption, yet we see much less borrowing for investment. This cannot be explained by a lack of investment opportunities, nor by a lack of resources available collectively for investment. This paper provides a novel explanation for this puzzle: investment reduces the investor’s need for informal risk sharing, weakening risk-sharing ties, and so limiting the amount of borrowing that can be sustained. I formalise this intuition by extending the canonical model of limited commitment in risk-sharing networks to allow for lumpy investment. The key prediction of the model is a non-linear relationship between total income and investment at the network level — namely there is a network-level poverty trap. I test this prediction using a randomised control trial in Bangladesh, that provided capital transfers to the poorest households. The data cover 27,000 households from 1,400 villages, and contain information on risk-sharing networks, income, and investment. I exploit variation in the number of program recipients in a network to identify the location of the poverty trap: the threshold level of capital provision needed at the network level for the program to generate further investment. My results highlight how capital transfer programs can be made more cost-effective by targeting communities at the threshold of the aggregate poverty trap.
Date:
2 May 2018, 12:30
Venue:
Manor Road Building, Manor Road OX1 3UQ
Venue Details:
Lecture Theatre
Speaker:
Arun Advani (University of Warwick, IFS, CAGE)
Organising department:
Department of Economics
Organisers:
Amma Panin (Nuffield College),
Rossa O'Keeffe-O'Donovan (Nuffield College),
Michael Koelle (Pembroke College)
Organiser contact email address:
suzanne.george@economics.ox.ac.uk
Part of:
CSAE Lunchtime Seminars
Booking required?:
Not required
Audience:
Public
Editors:
Erin Saunders,
Anne Pouliquen,
Julia Coffey,
Suzanne George,
Melis Clark
