应该是连结土地与劳动的合同吧

能把其所在的完整的一句话贴出来吗

This paper shows how ethnic diversity in a context of weak property rights enforcement can result in market segmentation. The paper analyzes how contract enforcement problems affect the joint decision of partner and contract choice by landlords in the land rental market in Guatemala. The empirical method allows partner choice to be determined not only by the characteristics and relative scarcity of the specific landowner and tenant, but also by the characteristics of other potential tenants. The results show that landowners without formal title are more likely to restrict their partners to tenants from the same ethnic group. Partner choice is found to be less important for renting with interlinked land–labor contracts。这是这篇文章的摘要。

怎么去理解呢？您看针对地主与佃户之间的合同，一般就两种：一是固定租金合同，一是分成制合同。连接土地与劳动的合同是不是可以这样理解：租种地主的土地，可以不付租金，但是需要付出劳动，也就是我们常说的徭役？

有可能