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This paper examines the formation of risk sharing networks in the rural Philippines. We find that geographic proximity-possibly correlated with kinship-is a major determinant of mutual insurance links among villagers. Age and wealth differences also play an important role. In contrast, income correlation and differences in occupation are not determinants of network links. Reported network links have a strong effect on subsequent gifts and loans. Gifts between network partners are found to respond to shocks and to differences in health status. From this we conclude that intra-village mutual insurance links are largely determined by social and geographical proximity and are only weakly the result of purposeful diversification of income risk. The paper also makes a methodological contribution to the estimation of dyadic models.

Using detailed data on gifts, loans, and asset sales, this paper investigates how rural Filipino households deal with income and expenditure shocks. We find that shocks have a strong effect on gifts and informal loans, but little effect on sales of livestock and grain. Mutual insurance does not appear to take place at the village level; rather, households receive help primarily through networks of friends and relatives. Certain shocks are better insured than others. The evidence is consistent with models of quasi-credit where risk is shared within tighly knit networks through flexible, zero interest informal loans combined with pure transfers.

Using detailed data on gifts, loans, and asset sales, this paper investigates how rural Filipino households deal with income and expenditure shocks. We find that shocks have a strong effect on gifts and informal loans, but little effect on sales of livestock and grain. Mutual insurance does not appear to take place at the village level; rather, households receive help primarily through networks of friends and relatives. Certain shocks are better insured than others. The evidence is consistent with models of quasi-credit where risk is shared within tighly knit networks through flexible, zero interest informal loans combined with pure transfers.

Households in the west African semi-arid tropics, as in much of the developing world, face substantial risk --an inevitable consequence of engaging in rainfed agriculture in a drought-prone environment. It has long been hypothesized that these households keep livestock as a buffer stock to insulate their consumption from fluctuations in income. This paper has the simple goal of testing that hypothesis. Our results indicate that livestock transactions play less of a consumption smoothing role than is often assumed. Livestock sales compensate for at most thirty percent, and probably closer to twenty percent of income shortfalls due to village-level shocks alone. We discuss possible explanations for these results and suggest directions for future work.

Large farmers in the Third World often devote to cash crops a larger share of their land than do small farmers. This paper suggests a possible explanation: even in the presence of food markets, Third World farmers' food security is best assured by food self‐sufficiency. A model of crop portfolio choice under multivariate risk is used to show that reasonable assumptions regarding risk and preferences reproduce the observed pattern. Simulations further indicate that food market integration reduces the need for food self‐sufficiency. Policy implications are drawn regarding domestic trade liberalization and agricultural technology.

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Using detailed survey data from Uganda, this article examines whether coffee producers sell to itinerant traders or directly to markets, where they can get a higher price but must incur a transport cost. We find that selling to the market is more likely when the quantity sold is large and the market is close by. Wealthy farmers are less likely to sell to the market, possibly because the shadow value of their time is higher. But if they have a large quantity of coffee for sale, they are more likely to sell it to the market. They are also more likely to travel to a distant market. These findings are consistent with their better ability to pay for public transportation. We find no evidence that the decision to sell at the farmgate is driven by a self-control motive. Copyright 2005, Oxford University Press.