Title: 5th Annual Central Florida Community Partners Nonprofit Conference
1The Use of Network Analysis to Strengthen
Community Partnerships
- Naim Kapucu, Ph.D.Department of Public
AdministrationCollege of Health and Public
AffairsUniversity of Central FloridaE-mail
nkapucu_at_mail.ucf.edu
5th Annual Central Florida Community Partners
Nonprofit Conference Collaboration The Power of
Partnerships May 11, 2006
2Objectives
- Social Network Analysis (SNA)
- Using SNA in Community Capacity Building
- SNA Applications (discussions)
- SNA Software Demonstration (UCINET)
- Examples of SNA
- Student performance
- Nonprofit governance
- Partnerships (in emergencies)
- Central Florida nonprofits
- Conference participants
3The Social Network Approach
- The world is composed of networks - not
densely-knit, tightly-bounded groups - Networks provide flexible means of social
organization and of thinking about social
organization - Networks have emergent properties of structure
and composition - Networks are a major source of social capital
mobilizable in themselves and from their contents - Networks are self-shaping and reflexive
4Social Relations
- Social relations can be thought of as dyadic
attributes. Whereas mainstream social science is
concerned with monadic attributes (e.g., income,
age, sex, etc.), network analysis is concerned
with attributes of pairs of individuals, of which
binary relations are the main kind. Some examples
of dyadic attributes - Kinship brother of, father of
- Social Roles boss of, teacher of, friend of
- Affective likes, respects, hates
- Cognitive knows, views as similar
- Actions talks to, has lunch with, attacks
- Distance number of miles between
- Co-occurrence is in the same club as, has the
same color hair as - Mathematical is two links removed from
5Social Network Analysis( SNA)
- Social network analysis is the study of social
entities (called actors), and their interactions
and relationships - The interactions and relationships can be
represented with a network or graph - each vertex (or node) represents an actor
- each link represents a relationship
- From the network, we can study the properties of
its structure, and the role, and position of each
social actor - We can also find various kinds of sub-graphs,
e.g., communities formed by groups of actors - Set of Connected Units People, Organizations,
Networks - Can Belong to Multiple Networks
- Examples Friendship, Organizational,
Inter-Organizational, World-System, Internet
6Social Network Analysis (SNA)
- SNA is the mapping and measuring of relationships
and flows between people, groups, organizations,
animals, computers, or other information/knowledge
processing entities - The nodes in the network are the people and
groups while the links show relationships or
flows between the nodes - SNA provides both a visual and a mathematical
analysis of human relationships - A method to understand networks and their
participants is to evaluate the location of
actors in the network. Measuring the network
location is finding the centrality of a node.
These measures help determine the importance, or
prominence, of a node in the network. Network
location can be different than location in the
hierarchy, or organizational chart - We will look at a social network (Kite Network)
developed by David Krackhardt. Two nodes are
connected if they regularly talk to each other,
or interact in some way
7What is Network Analysis?
- Network analysis is the study of social relations
among a set of actors - In the process of working in this field, network
researchers have developed a set of distinctive
theoretical perspectives as well. Some of the
hallmarks of these perspectives are - focus on relationships between actors rather than
attributes of actors - sense of interdependence a molecular rather
atomistic view - structure affects substantive outcomes
- emergent effects
- Network theory is sympathetic with systems theory
and complexity theory - Social networks is also characterized by a
distinctive methodology encompassing techniques
for collecting data, statistical analysis, visual
representation, etc.
8Data Sources of SNA
- Questionnaires
- Direct observation
- Written records
- Experiments
- Affiliations and similarities
- Online resources
9Basics of Network Measures
- Centrality
- Degree
- Closeness
- Betweenness
- Flow Betweenness
- Cliques Sub-groups
- N-cliques
- N-Clans
10Kite Network
11Centrality
- Structural attributes of nodes in a network
(position) - Measure of the contribution of network position
to the importance, influence, prominence of an
actor in a network - Centralization refers to the extent to which a
network revolves around a single node
12Degree Centrality
- Number of direct ties to others (Row or column
sums of adjacency matrix) - Important or prominent actors are those that are
linked or involved with other actors extensively - A person with extensive contacts (links) or
communications with many other people in the
organization is considered more important than a
person with relatively fewer contacts - The links can also be called ties. A central
actor is one involved in many ties - Common wisdom in personal networks is the more
connections, the better. This is not always so.
What really matters is where those connections
lead to -- and how they connect the otherwise
unconnected
13Betweenness Centrality
- If two non-adjacent actors j and k want to
interact and actor i is on the path between j and
k, then i may have some control over the
interactions between j and k - Betweenness measures this control of i over
other pairs of actors. Thus, - if i is on the paths of many such interactions,
then i is an important actor
14Betweenness Centrality
- Loosely, the number of geodesic paths that pass
through a node. The number of times that any
node need a given node to reach any node by the
shortest path - While Diane has many direct ties, Heather has few
direct connections -- fewer than the average in
the network. Yet, in may ways, she has one of the
best locations in the network -- she is between
two important constituencies. She plays a
broker role in the network. The good news is
that she plays a powerful role in the network,
the bad news is that she is a single point of
failure. Without her, Ike and Jane would be cut
off from information and knowledge in Diane's
cluster - A node with high betweenness has great influence
over what flows in the network. As in Real
Estate, the golden rule of networks is
Location, Location, Location - Flow Betweenness Centrality
15Closeness Centrality
- The graph-theoretical distance of a given node to
all other nodes (The sum of the rows/columns of
the geodesic distance matrix of a graph) - Simple closeness is an inverse measure of
centrality the larger the numbers, the more
distance an actor is, and the less central
(farness!) - Fernando and Garth have fewer connections than
Diane, yet the pattern of their direct and
indirect ties allow them to access all the nodes
in the network more quickly than anyone else.
They have the shortest paths to all others --
they are close to everyone else. They are in an
excellent position to monitor the information
flow in the network -- they have the best
visibility into what is happening in the network
16Network Centralization
- Individual network centralities provide insight
into the individuals location in the network.
The relationship between the centralities of all
nodes can reveal much about the overall network
structure - A very centralized network is dominated by one or
a few very central nodes. If these nodes are
removed or damaged, the network quickly fragments
into unconnected sub-networks. A highly central
node can become a single point of failure. A
network centralized around a well connected hub
can fail abruptly if that hub is disabled or
removed. Hubs are nodes with high degree and
betweeness centrality - A less centralized network has no single points
of failure. It is resilient in the face of many
intentional attacks or random failures -- many
nodes or links can fail while allowing
17Cliques and Sub-groups
- Networks are also built up out of the combining
of dyads and triads into larger, but still
closely connected sub-structures - Many of the approaches to understanding the
structure of a network emphasize how dense
connections are compounded and extended to
develop larger cliques or sub-groupings - A clique is simply a sub-set of actors who are
more closely tied to each other than they are to
actors who are not part of the group - This view of social networks focuses attention on
how connection of large networks structures can
be built up out of small and tight components
18Network Reach
- Not all network paths are created equal. More and
more research shows that the shorter paths in the
network are more important (key paths in networks
are 1 and 2 steps and on rare occasions, three
steps) - The small world we live is not one of "six
degrees of separation" but of direct and indirect
connections lt 3 steps away. Therefore, it is
important to know who is in your network
neighborhood? Who are you aware of, and who can
you reach? - In the Kite Network, who is the only person that
can reach everyone else in two steps?
19Boundary Spanners
- Nodes that connect their group to others usually
end up with high network metrics. Boundary
spanners such as Fernando, Garth, and Heather are
more central than their immediate neighbors whose
connections are only local, within their
immediate cluster - Boundary spanners are well-positioned to be
innovators, since they have access to ideas and
information flowing in other clusters. They are
in a position to combine different ideas and
knowledge, found in various places, into new
products and services
20Peripheral Players
- Most people would view the nodes on the periphery
of a network as not being very important. In
fact, Ike and Jane receive very low centrality
scores for this network. Yet, peripheral nodes
are often connected to networks that are not
currently mapped. Ike and Jane may be contractors
or vendors that have their own network outside of
the company -- making them very important
resources for fresh information not available
inside the organization!
21Recent Applications of SNA
- Help large organization locate employees in new
buildings - Examine a network of farm animals to analyze how
disease spreads from one cow to another - Map network of Jazz musicians based on musical
styles and CD sales - Discover emergent communities of interest amongst
faculty at various universities - Reveal cross-border knowledge flows based on
research publications - Expose business ties financial flows to
investigate possible criminal behavior - Uncover network of characters in a fictional work
- Analyze managers networks for succession
planning - Locate technical experts and the paths to access
them in engineering organization - Disaster response networks
- Build a grass roots political campaign
- Determine influential journalists and analysts in
the IT industry - Unmask the spread of HIV in a prison system
- Map executives personal network based on email
flows - Discover the network of Innovators in a regional
economy - Analyze book selling patterns to position a new
book - Map a group of entrepreneurs in a specific
marketplace - Map interactions amongst blogs on various topics
- Reveal key players in an investigative news story
- Map national network of professionals involved in
a change effort - Improve the functioning of various project teams
- Map communities of expertise in various medical
fields
22Meta-Matrix Network Framework
23SNA Software (UCINET)
- UCINET is a comprehensive software program for
the analysis of social networks - The program contains several network analytic
routines (e.g., centrality measures, dyadic
cohesion measures, positional analysis
algorithms, and clique etc.), and general
statistical and multivariate analysis tools such
as multidimensional scaling, correspondence
analysis, factor analysis, cluster analysis, and
multiple regression - Available online www.analytictech.com/ucinet.htm
24Org-chart shows how authority ties should look
SOURCE Brandes, Raab and Wagner (2001)
lthttp//www.inf.uni-konstanz.de/brandes/publicat
ions/brw-envsd-01.pdfgt
25 but the digraph of actual advice-seeking
26 can be restructured to reveal the real
hierarchy!
27Nonprofit Governance
- Organizational Chart
- Formal organizational structure
- Friendship Networks
- Strengths of weak ties
- Advice Networks
- Structural holes
28Friendship Network (Nonprofit)
? Board member, ? Staff
29Advice Network (Nonprofit)
? Board member, ? Staff
30Questions for Communities Based on Network
Analysis
- Which community agencies or groups are most (and
least) central in the network, and are these
agencies or groups essential for addressing
community needs in a particular problem area? - Which core network members have links to
important resources through their involvement
with organizations outside the network that might
benefit other network members? - Are the critical ties among agencies in the
community based solely on personal relationships,
or have these ties become formalized so that they
are sustainable over time? - Are the relationships among agencies in the
network strong or weak? If they are weak, should
these relationships be maintained as is, or
should they be strengthened? - Which groups of organizations within the network
currently have strong working relationships? How
can these groups be mobilized to meet the broader
objectives of the network? - Based on comparative network data over time, has
reasonable progress been made in building
community capacity through developing stronger
network ties? - What is the level of trust among agencies working
together, and has it increased or decreased over
time? If it has declined, how can it be
strengthened? - What are the benefits and drawbacks of
collaboration, have these changed over time, and
how can benefits be enhanced and drawbacks
minimized?
Source Provan, K. G. et al. 2005
31Central Florida Nonprofit Network
32Conclusion
- Information generated through SNA will have
practical value if it effectively presented,
discussed, accepted, and acted on by network
participants - SNA can be a valuable tool for helping community
leaders (network members) to understand network
structure and processes
33References
- Provan, K. G., M. A. Veazie, L. K. Staten, N. I.
Teufel-Shone . 2005. The Use of Network Analysis
to Strengthen Community Partnerships, Public
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- J. Clyde Mitchell, Networks, Norms
Institutions, 1973 - Holland Leinhardt, Perspectives on Social
Network Research,1979 - S. D. Berkowitz, An Introduction to Structural
Analysis, 1982 - Knoke Kuklinski, Network Analysis, 1983, Sage
- Charles Tilly, Big Structures, Large Processes,
Huge Comparisons, 1984 - Wellman Berkowitz, eds., Social Structures,
1988 - David Knoke, Political Networks, 1990
- John Scott, Social Network Analysis, 1991
- Ron Burt, Structural Holes, 1992
- Manuel Castells, The Rise of Network Society,
2000 - Wasserman Faust, Social Network Analysis, 1992
- Nan Lin, Social Capital (monograph reader), 2001
34Discussions Questions