Fertility desires are fundamental to understanding contraceptive use, yet the relationship between the two remains unclear and is the subject of much debate in demography. To understand the macrolevel relationship between fertility desires and contraceptive transition in low‐ and middle‐income countries, we introduce a conceptual model that articulates the microlevel processes through which a desire to avoid childbearing translates into contraceptive use and reasons for their frequent misalignment. The model calls for a more nuanced understanding of fertility desires, differentiates between the acceptability and accessibility of contraception, and highlights the multilevel forces that shape the costs of fertility regulation. These microlevel processes are key to understanding the evolving role of changes in fertility desires and changes in the implementation of desires on contraceptive transition across time and space. We conclude these relationships are additive, multiplicative, and dynamic over time.

中文翻译：

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生育愿望和避孕转变


生育愿望是理解避孕药具使用的基础，但两者之间的关系仍不清楚，并且是人口学中许多争论的主题。为了了解低收入和中等收入国家生育愿望与避孕转变之间的宏观关系，我们引入了一个概念模型，该模型阐明了避免生育的愿望转化为避孕药具使用的微观过程以及它们经常错位的原因。该模型呼吁对生育愿望进行更细致的理解，区分避孕的可接受性和可及性，并强调影响生育调节成本的多层次力量。这些微观过程是理解生育欲望变化和欲望实施变化对避孕转变跨越时间和空间的变化的关键。我们得出结论，这些关系是加法、乘法和随时间变化的。