Systèmes agraires et changement climatique au Sud

À partir de l’étude détaillée et de la comparaison d’une douzaine de situations locales contrastées en Afrique sub-saharienne et en Asie du Sud-Est, les auteurs mettent en évidence les processus et les trajectoires qui expliquent la forte exposition aux aléas des différents groupes d’agriculteurs, ainsi que leur inégale capacité d’adaptation. Ils expliquent les ressorts de cette vulnérabilité et illustrent le poids des choix passés et actuels en matière de politiques agricole, environnementale et commerciale. Enfin, ils présentent les modalités d’ajustement et les transformations passées et en cours des pratiques paysannes allant dans le sens d’une réduction de l’exposition à l’aléa, d’une atténuation de la vulnérabilité, et d’une meilleure adaptation aux changements globaux : dérèglement climatique bien sûr, mais aussi accroissement démographique, compétition accrue pour l’accès aux ressources, évolution des prix relatifs et fluctuations des marchés, dérégulation et baisse des soutiens publics, etc. Ils esquissent en conclusion les chemins possibles en matière d’adaptation et des propositions de mesures politiques pour accompagner les producteurs.Pour des raisons de différences de fabrication, les figures et photos en couleurs de la présente version sont disséminées au sein des différents chapitres, mais sont réunies à la fin du chapitre 4 de la version PDF

Men's premarital migration and marriage payments: Evidence from Indonesia

Bride price customs are widespread in many developing countries. While the economic literature has widely investigated the implications of such transfers on women's welfare, little is known about their consequences on men's premarital behavior. In this paper, we exploit a quasi-natural experiment of a school-building program in Indonesia (INPRES) to investigate the relationship between marriage norms and the internal migrations of young men in age to marry. Based on empirical and theoretical settings of the literature, we rely on the effects of the INPRES program on girls' education and the parents' expectations on their daughters' bride price. Combining anthropological, administrative, and individualbased datasets, we implement a triple-difference approach. We find that men with bride price customs were more likely to migrate to areas more economically attractive than their district of origin. In contrast, no evidence exists of such behavior for men from ethnic groups without marriage payments. We interpret these results as evidence for the fact that men migrate to accumulate resources at destination to meet the parents' bride price expectations and marry at home. We also highlight that these migration strategies are implemented by the less advantaged males in their origin marriage market (latter-borns or from lower social class). These findings suggest that the interaction between marital norms and policies can result in unintended consequences, such as increasing premarital migration

Men's premarital migration and marriage payments: Evidence from Indonesia

Bride price customs are widespread in many developing countries. While the economic literature has widely investigated the implications of such transfers on women's welfare, little is known about their consequences on men's premarital behavior. In this paper, we exploit a quasi-natural experiment of a school-building program in Indonesia (INPRES) to investigate the relationship between marriage norms and the internal migrations of young men in age to marry. Based on empirical and theoretical settings of the literature, we rely on the effects of the INPRES program on girls' education and the parents' expectations on their daughters' bride price. Combining anthropological, administrative, and individualbased datasets, we implement a triple-difference approach. We find that men with bride price customs were more likely to migrate to areas more economically attractive than their district of origin. In contrast, no evidence exists of such behavior for men from ethnic groups without marriage payments. We interpret these results as evidence for the fact that men migrate to accumulate resources at destination to meet the parents' bride price expectations and marry at home. We also highlight that these migration strategies are implemented by the less advantaged males in their origin marriage market (latter-borns or from lower social class). These findings suggest that the interaction between marital norms and policies can result in unintended consequences, such as increasing premarital migration

Relations entre éleveurs-apporteurs et transformateurs et conséquences sur les pratiques d’élevage : le cas du bassin de production ovin laitier corse

Avec 2440 tonnes de fromages par an (9 millions de litres de lait) (RGA, 2010), la Corse est le troisième bassin de production ovin-lait en France, après le Rayon et les Pyrénées-Atlantiques. Il est structuré par l’interprofession laitière ovine et caprine (ILOCC) où les laitiers composent avec une forte présence des fermiers. La force du bassin repose sur une masse silencieuse : les éleveurs-apporteurs (50% des élevages; 70% du volume). La diminution des exploitations est en cours depuis les années 1970, et rend l’avenir de la filière incertain. Questionner la trajectoire conjointe des élevages et des laiteries devient pertinente. Comment se construisent les relations apporteurs-laiteries et en quoi influencent-elles les systèmes d’élevage

Men's premarital migration and marriage payments: Evidence from Indonesia

Bride price customs are widespread in many developing countries. While the economic literature has widely investigated the implications of such transfers on women's welfare, little is known about their consequences on men's premarital behavior. In this paper, we exploit a quasi-natural experiment of a school-building program in Indonesia (INPRES) to investigate the relationship between marriage norms and the internal migrations of young men in age to marry. Based on empirical and theoretical settings of the literature, we rely on the effects of the INPRES program on girls' education and the parents' expectations on their daughters' bride price. Combining anthropological, administrative, and individualbased datasets, we implement a triple-difference approach. We find that men with bride price customs were more likely to migrate to areas more economically attractive than their district of origin. In contrast, no evidence exists of such behavior for men from ethnic groups without marriage payments. We interpret these results as evidence for the fact that men migrate to accumulate resources at destination to meet the parents' bride price expectations and marry at home. We also highlight that these migration strategies are implemented by the less advantaged males in their origin marriage market (latter-borns or from lower social class). These findings suggest that the interaction between marital norms and policies can result in unintended consequences, such as increasing premarital migration

Men's premarital migration and marriage payments: Evidence from Indonesia

Bride price customs are widespread in many developing countries. While the economic literature has widely investigated the implications of such transfers on women's welfare, little is known about their consequences on men's premarital behavior. In this paper, we exploit a quasi-natural experiment of a school-building program in Indonesia (INPRES) to investigate the relationship between marriage norms and the internal migrations of young men in age to marry. Based on empirical and theoretical settings of the literature, we rely on the effects of the INPRES program on girls' education and the parents' expectations on their daughters' bride price. Combining anthropological, administrative, and individualbased datasets, we implement a triple-difference approach. We find that men with bride price customs were more likely to migrate to areas more economically attractive than their district of origin. In contrast, no evidence exists of such behavior for men from ethnic groups without marriage payments. We interpret these results as evidence for the fact that men migrate to accumulate resources at destination to meet the parents' bride price expectations and marry at home. We also highlight that these migration strategies are implemented by the less advantaged males in their origin marriage market (latter-borns or from lower social class). These findings suggest that the interaction between marital norms and policies can result in unintended consequences, such as increasing premarital migration

Resilience and adaptation of family farming to climate change in the Mekong Delta (Vietnam)

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