Jianghua Liu

Xi'an Jiaotong University | XJTU · Institute for Population and Development Studies

Objectives This study provides an evolutionary perspective to a classic topic in demography, that is, the discrepancy between reproductive intention and subsequent behavior, in the context of China's two-child policy. Methods We conduct an event history analysis of longitudinal data from the 2015 and 2018 waves of the Xi'an Fertility Survey (sampl...

After a universal two-child policy was introduced in China in 2016, studies have been published using women’s fertility intentions to forecast future births; however, the recommended algorithms need to be improved. In this study, an algorithm based on the method of limiting factors is developed to retrospectively forecast annual births in Xi’an Cit...

The introduction of the universal two-child policy in 2016 marked a major social transition in China and raised a requirement for family planning services; however, the turnover in family planning staff poses a challenge to satisfying the requirement. Thus far, after implementation of the policy, there have been few surveys investigating turnover i...

The introduction of the two-child family planning policy in China calls for a study of the response of mothers’ subjective well-being after the birth of a second child. Generally focusing on Western countries, previous studies suggested that a series of factors could influence the response, but insufficient attention has been paid to the relative i...

The transition to low fertility worldwide has led to introduction of diverse frameworks across disciplines to understand its causes and consequences. Previous attempts to compare the relative importance of the key factors influencing women's fertility decision-making largely focused on a single rather than multiple steps of decision-making—an impor...

Objectives: In China, the recent replacement of the one-child policy with a twochild policy could potentially change family ecology—parents may switch investment from exclusively one child to two. The parent-offspring conflict theory provides testable hypotheses concerning possible firstborn opposition toward further reproduction of their mother, a...

The concept of marriage squeeze expects a positive association between marriage formation and the availability of preferred mates. Previous research to test the hypothesis has had mixed results owing to inconsistent marriage measures, inconsistent age focuses and insufficient attention to migration. This study derives kinetics equations of marriage...

The change in benefits of high socioeconomic status to fertility in humans during the demographic transition from high to low fertility has interested both demographers and evolutionary biologists. Evolutionary analyses add to demographic analyses by considering also males and status-related differential in male mating success, but they have been l...

Radical declines in fertility and postponement of first reproduction during the recent human demographic transitions have posed a challenge to interpreting human behaviour in evolutionary terms. This challenge has stemmed from insufficient evolutionary insight into individual reproductive decision-making and the rarity of datasets recording individ...

Likelihood-ratio test of the main and interaction effects in maximum models in analyzing specific associations. (DOC)

Life history theory predicts a trade-off between fitness benefits and costs of delaying age at first reproduction (AFR). In many human populations, maternal AFR has been increasingly delayed beyond sexual maturity over the past decades, raising a question of whether any fitness benefits accrued outweigh costs incurred. To investigate the cost–benef...