The research field of data analysis and mining has attracted the interest of both academia and industry in recent years. This reprint contains 17 papers, which cover different topics of the broad research field of data analysis and mining. Each paper presents new data mining algorithms and...

We examine friendships and study partnerships among university students over several years. At the aggregate level, connections increase over time, but homophily on gender and ethnicity is relatively constant across time, university residences, and different network layers. At the individual...

Social interactions determine many economic behaviors, but information on social ties does not exist in most publicly available and widely used datasets. We present results on the identification of social networks from observational panel data that contains no information on social ties between...

This paper studies the role of social connections in shaping individuals’ concerns about climate change. I combine granular climate data, region-level social network data and survey responses for 24 European countries in order to document large information spillovers. Individuals become more...

We analyze the impact of economic conditions at arrival on the economic integration of family-sponsored migrants in the U.S. A one pp higher unemployment rate at arrival decreases annual wage income by four percent in the short run and two percent in the longer run. The loss in wage income...

In the dynamic realm of early-stage investments, startups and venture capital firms engage in a thrilling dance of risk and reward, seeking the next big breakthrough in a vibrant ecosystem dominated by the right connections. The study approaches seed investing through the lenses of network...

In this study, I examine the impact of network size on temporary migration. The network size reflects the extent of informal risk-sharing options available to rural households. Temporary migration is another form of self-insurance in a rural economy. I particularly focus on how the impact of...

Formal financial institutions can have far-reaching and long-lasting impacts on informal lending and information networks. We first study 75 villages in Karnataka, 43 of which were exposed to microfinance after we first collected detailed network data. Networks shrink more in exposed villages....

Social capital and the Chinese concept of guanxi (connections) can be used to explain changes in income inequality; however, their connotations differ. Previous studies identify social networks as an important factor influencing income inequality in China but ignore the distinction between...