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This paper is intended to bridge the theoretical literature describing efficient intrahousehold behaviour and the development literature that collects empirical regularities pointing toward the existence of strategic decision-making among spouses. It examines the key elements of the collective model and discusses its relevance to analysing intra-household behaviour in poor countries. It explores the role that risk and uncertainty, information asymmetries, power imbalances, arranged marriages, strategic investment, gender norms, and extended households play in the attainment of efficiency.

Fertility decisions are often made by partners who may disagree. We develop a model in which conflicting interests prevent effective communication between spouses about the costs of childbearing incurred by women. This mechanism is likely to further widen the spousal disagreement over fertility in environments where maternal health risk is high and imperfectly observed. We design an intervention to experimentally vary exposure to information about maternal health costs to either the husband or the wife among approximately 500 couples in Lusaka, Zambia. At baseline, husbands exhibit lower knowledge of maternal health risk compared to their wives. One year after the intervention, husbands significantly update their beliefs about maternal risk but only if the information is delivered directly to them, whereas wives update their beliefs about risk regardless of who in the household is treated. The intra-household asymmetry in information spillovers is strongest among men with more urgent demand for children. Households treated with information on maternal risk experience a sizable reduction in the probability of pregnancy -an effect which is strongest when the woman faces a higher risk of complications -but only when the information is delivered to wives rather than husbands is this decline in fertility accompanied by a significant reduction in transfers to the wife. These patterns are consistent with differences in initial beliefs and demand for children generating a barrier to credible communication between spouses.

This paper is intended to bridge the theoretical literature describing efficient intrahousehold behaviour and the development literature that collects empirical regularities pointing toward the existence of strategic decision-making among spouses. It examines the key elements of the collective model and discusses its relevance to analysing intra-household behaviour in poor countries. It explores the role that risk and uncertainty, information asymmetries, power imbalances, arranged marriages, strategic investment, gender norms, and extended households play in the attainment of efficiency.

International audienceMaternal mortality remains very high in many parts of the developing world, especially in sub-Saharan Africa. While maternal deaths are observable, it may not be straightforward for individuals to learn about risk factors. This paper utilizes novel data on male and female perceptions of maternal risk in Zambia to document that superstitions about causes of maternal mortality are pervasive and to uncover evidence that such beliefs impede learning about maternal health risk levels and correlates. In our data, people who hold traditional beliefs disregard past birth complications completely in assessing future risk, unlike those who hold modern beliefs

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Why do farm households inefficiently allocate resources across the plots they cultivate? We explore how these production inefficiencies relate to consumption decisions and information sharing within the household. In a lab-in-the-field experiment, male producers allocate too few inputs to their wife's plot, failing to maximize household aggregate profits. They do transfer more inputs when the returns from that plot are higher. Experimental manipulation of information on these returns triggers heterogenous responses across households. We provide a theoretical framework that rationalizes these findings and further leads to sharp predictions. Joint contribution to a household public good compels spouses to make efficient production decisions. Only households who are in a separate-sphere regime experience inefficiency in farm production and are unable to effectively communicate on returns to avoid extra losses. Consistent with this framework, when we experimentally offer an ex post information verification mechanism, additional losses due to information asymmetries are prevented.

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