Connection and distance

Distance

Basis demographics:

Networks and actors

Connection

Actors are embedded in networks.

Knoke’s information exchange

To get more precise, it is necessary to work with the adjacency matrix instead of the graph.

Connection indicator: cohesion, solidarity, moral density and complexity of the social organization o a population.

Individuals ay be sources of ties, sinks or both.

Population size is one of the most critical variables in all sociological analyses.

(2) Actor degree

(3) Density

(1) Network size

(4) Reachability:

(5) Connectivity

Geodesic

Eccentricity

Diameter

Flow

The exponential decay

The frequency decay method

measure how far an actor is from the furthest other.
that actor's largest geodesic distance

The largest geodesic distance in the (connected) network

density of a network may give us insights into such phenomena as the speed at which information diffuses among the nodes, and the extent to which actors have high levels of social capital and/or social constraint.

With symmetric or undirected data,each pair of actors either are or are not reachable to one another.

Point connectivity can be a useful measure to get at notions of dependency and vulnerability.