Social networks play a crucial role in developing economies. One of their most important functions is facilitating the flow of information, particularly about the efficacy of new technologies. This dissertation explores three aspects of this research agenda. First, I study how economists can estimate the structure of a social network...
The advent of next-generation sequencing technologies has greatly promoted the devel- opment of metagenomics, and the analysis of compositional dataset has a wide range of application in this area. Because of the constraint that the sum of species relative abun- dance being 1, many traditional and classical statistical methods cannot...