  In recent years, methods from network science are gaining rapidly interest in
economics and finance. A reason for this is that in a globalized world the
interconnectedness among economic and financial entities are crucial to
understand and networks provide a natural framework for representing and
studying such systems. In this paper, we are surveying the use of networks and
network-based methods for studying economy related questions. We start with a
brief overview of graph theory and basic definitions. Then we discuss
descriptive network measures and network complexity measures for quantifying
structural properties of economic networks. Finally, we discuss different
network and tree structures as relevant for applications.
