Abstract Previous research has demonstrated that consanguineous marriage is a vector for socioeconomic inheritance and for the maintenance of family structure and property. On the basis of reconstituted families from the Krummhorn, Ostfriesland in the 18th and 19th centuries, we examine statistical correlations between ascertained inbreeding coefficients (F) based on family trees and socioeconomic status as well as the intergenerational transmission of landholdings. Semiparametric copula/bivariate regression models with non-random sample selection were applied to estimate F and the proportion of medium (0.0625 > F ≥ 0.0156) or high consanguineous unions (F ≥ 0.0625), respectively. Our estimates for F as well as for the proportion of medium (0.0625 > F ≥ 0.0156) or high consanguineous unions (F ≥ 0.0625) are significantly higher among socioeconomically privileged large farmer families than among the landless portion of the population. At the same time, our analyses show that a high level of consanguinity is associated with an increased intergenerational transmission of landholdings through the patriline (but not the matriline). We discuss the reproductive consequences of consanguinity among large farmers in connection with local resource competition, intensive kinship, and potential in-law conflicts.

中文翻译：

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高血缘关系促进了 18 世纪和 19 世纪享有社会经济特权的克鲁姆霍恩家族的代际财富集中

摘要 以往的研究表明，近亲婚姻是社会经济继承和家庭结构和财产维护的载体。基于 18 和 19 世纪东弗里斯兰省克鲁姆霍恩的重建家庭，我们研究了基于家谱和社会经济地位确定的近亲繁殖系数 (F) 以及土地所有权的代际传递之间的统计相关性。使用非随机样本选择的半参数 copula/双变量回归模型分别估计 F 和中等 (0.0625 > F ≥ 0.0156) 或高血缘联盟 (F ≥ 0.0625) 的比例。我们对 F 以及中等 (0.0625 > F ≥ 0.0156) 或高血缘结合 (F ≥ 0. 0625）在社会经济上享有特权的大农民家庭中的比例明显高于人口中无地部分。同时，我们的分析表明，高水平的血缘关系与通过父系（但不是母系）的土地所有权代际传递增加有关。我们讨论了与当地资源竞争、密切的亲属关系和潜在的姻亲冲突相关的大农户血缘关系的生殖后果。