We estimate demand elasticities for fish in Myanmar by fish supply sources and household groups, using a multistage budgeting approach combined with quadratic almost ideal demand system (QUAIDS). Our findings show that fish demand from all supply sources and household groups has increased with income. A substantial share of increasing demand for all fish groups is likely to come from poor and rural households because the income elasticity of demand for all fish groups is higher for poor (0.40) and rural households (0.32) than for nonpoor (0.26) and urban households (0.29). Farmed-fish consumption is the most income-responsive in all household groups. Demand for fish tends to be less price elastic for poor households because fish is their cheapest animal protein source, and substitutes are limited. Effective management policies and new technologies are essential to sustain fish supply from capture fisheries and aquaculture to meet the increasing fish demand in Myanmar.

中文翻译：

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缅甸鱼类需求的分类分析

我们使用多阶段预算方法结合二次几乎理想需求系统 (QUAIDS)，按鱼类供应来源和家庭群体估计缅甸鱼类的需求弹性。我们的研究结果表明，所有供应来源和家庭群体的鱼类需求都随着收入的增加而增加。对所有鱼类群体的需求增加的很大一部分可能来自贫困和农村家庭，因为贫困家庭（0.40）和农村家庭（0.32）对所有鱼类群体的需求收入弹性高于非贫困家庭（0.26）和城市家庭家庭（0.29）。在所有家庭群体中，养殖鱼类消费对收入的影响最大。对贫困家庭来说，鱼的需求往往缺乏价格弹性，因为鱼是他们最便宜的动物蛋白来源，而且替代品有限。