Diversity learning · Advanced

Social Networks, Homophily, and Opportunity Hoarding

Trace how information and advocacy move through relationships, and widen access to opportunities without policing personal friendships.

About 56 minutes, plus optional practice · 4 lessons · Voluntary learning

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All diversity courses: Foundation, Intermediate, and Advanced

Course outline

Separate personal affinity from opportunity structure
Define homophily without assuming a motive.
14 minutes
Understand bridging ties and their limits
Distinguish bonding and bridging functions of relationships.
14 minutes
Identify opportunity hoarding without assuming conspiracy
Identify an exclusion mechanism in a recurring allocation pattern.
14 minutes
Evaluate access while respecting privacy
Select measures of opportunity access and quality.
14 minutes

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What you’ll be able to do

Explore and practice

Define homophily without assuming a motive.
Distinguish bonding and bridging functions of relationships.
Identify an exclusion mechanism in a recurring allocation pattern.
Select measures of opportunity access and quality.

What you can take into your work

Explain the reasoning behind a response to each fictional case.
Use the course job aid to propose an observable change and a way to review it.

Create a review covering notice, preparation, selection, support, credit, and feedback from nonparticipants.

Read the introduction

Trace how information and advocacy move through relationships, and widen access to opportunities without policing personal friendships.

Social Networks, Homophily, and Opportunity Hoarding — practice guide

A working aid for examining a decision, preparing a response, and checking what changed.

Trace how information and advocacy move through relationships, and widen access to opportunities without policing personal friendships.

Keep evidence, interpretation, and proposed action distinct.
Use authorized work records only; keep private learning responses out of personnel records.
A course exercise does not replace formal policy, complaint procedures, professional assessment, or decision authority.

Create a review covering notice, preparation, selection, support, credit, and feedback from nonparticipants.

Trace the route

Choose a consequential opportunity.
Record notice, preparation, nomination, selection, support, and credit.
Identify where personal familiarity substitutes for an open route.

Design access

Publish information early enough to act on it.
Create supported entry routes where development is the purpose.
Use relevant criteria and explain decisions.
Avoid requiring unpaid social activity to obtain essential information.

Review without surveillance

Measure access and participation quality separately.
Use authorized organizational records rather than private friendship data.
Protect small groups in demographic analysis.
Review whether newcomers receive support and recognition after selection.

Complete a practice record

Decision or situation: describe one concrete example and the specific part within your responsibility.
Evidence: record the observed sequence and identify what is still uncertain; do not include private course reflections or unnecessary personal details.
Proposed action: Create a review covering notice, preparation, selection, support, credit, and feedback from nonparticipants.
Review: name the person responsible, an appropriate review date, and the evidence that would support continuing, revising, or stopping the change.
Return the result: explain what changed and why to the people who need that information, using an appropriate authorized channel.

Participation and course completion in this program do not count toward DHS-required training credits unless management, a director, or DHS leadership expressly approves an exception.

Sources and further reading

McPherson, Smith-Lovin, and Cook (2001), Birds of a Feather: Homophily in Social Networks
University-hosted full research review distinguishing network composition and homophily. Workplace allocation exercises are original applications.
Rajkumar and colleagues (2022), A causal test of the strength of weak ties
Abstract and citation record. Primary experiment on a professional-network platform; its effects do not guarantee results from internal networking programs.

All research and sources across the program

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