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We develop a model where agents obtain information about job opportunities through an explicitly modeled network of social contacts. We show that employment is positively correlated across time and agents. Moreover, unemployment exhibits duration dependence: the probability of obtaining a job decreases in the length of time that an agent has been unemployed. Finally, we examine inequality betwe...

Online Social Network (OSN) mining has been a vast active area of research in the current years mainly due to the immense increase in the usage and popularity of such social networks. However, the huge amount of resources available in Online Social Networks (OSNs) poses a great challenge for researchers to analyze such networks. Also, the data generated from OSNs is dynamic and requires the nee...

Social networks play an essential role in learning environments as a key channel for knowledge sharing and students’ support. In distributed learning communities, knowledge sharing does not occur as spontaneously as when a working group shares the same physical space; knowledge sharing depends even more on student informal connections. In this study we analyse two distributed learning communiti...

Feel lonely? What about reading books? Book is one of the greatest friends to accompany while in your lonely time. When you have no friends and activities somewhere and sometimes, reading book can be a great choice. This is not only for spending the time, it will increase the knowledge. Of course the b=benefits to take will relate to what kind of book that you are reading. And now, we will conc...

We may not be able to make you love reading, but surviving disaster the role of social networks will lead you to love reading starting from now. Book is the window to open the new world. The world that you want is in the better stage and level. World will always guide you to even the prestige stage of the life. You know, this is some of how reading will give you the kindness. In this case, more...

Safety is a concern for most urban communities; police departments bear the majority of responsibility to maintain law and order and prevent crime. Police agencies across the globe are increasingly using Online Social Network (OSN) (such as Facebook and Twitter) to acquire intelligence and connect with citizens. Developing nations like India are however, still exploring OSN for policing. We int...

Networks describe a range of social, biological and technical phenomena. An important property of a network is its degree correlation or assortativity, describing how nodes in the network associate based on their number of connections. Social networks are typically thought to be distinct from other networks in being assortative (possessing positive degree correlations); well-connected individua...

In this paper, we propose a grouping strategy to enhance the learning and testing results of students, called Pairing Strategy (PS). The proposed method stems from the need of interactivity and the desire of cooperation in cooperative learning. Based on the social networks of students, PS provides members of the groups to learn from or mimic learners who have good relationships with them. As su...

Relationships between agricultural input suppliers and output sellers are an important component of agricultural production in rural Nigeria. Inputs are often difficult to access at critical periods of the crop cycle and few storage options requires rapid marketing of output after harvest. This paper uses a 20 year panel (1988-2008) with detailed information on both agricultural production and ...