Power Dynamics: What Robert Moses Shows About Influence

September 1, 2026 Updated: October 20, 2026 · By Taylor Yang · #power dynamics #decision making #influence

Robert Moses never won an election yet ran New York's bridges for 34 years. See how tolls, bill drafting, and bonds gave him power, then map one decision.

Diagram with a decision at the center linked to five sources of influence: authority, rewards, coercion, expertise, and identification.

Robert Moses never won an election. He ran for governor of New York once, in 1934, and lost. Yet for over 40 years he held up to 12 public titles at once and decided where New York’s bridges, parkways, and beaches went. Mayors and governors came and went. Removing him took a new state agency and a bank that chose not to sue.

Power dynamics describe how people’s abilities to influence an outcome interact in a group. Formal authority is one source. Expertise, money, information, access, and the ability to block or carry out a decision are others. The person who signs last is often not the person who shaped the options.

Moses’ power sat in tolls and fine print

Moses rose under Governor Al Smith in the 1920s and became known as “the best bill drafter in Albany,” according to his Wikipedia biography. Writing the bill meant he could set the terms of the jobs he later held.

His strongest post was chairman of the Triborough Bridge and Tunnel Authority (TBTA), from 1934 to 1968. As the New York Daily News put it, the authority “controlled millions of dollars in toll money,” most of which Moses “could spend as he pleased on projects he liked.” Mayor John Lindsay tried in 1966 to legislate Moses and the TBTA out of business. He failed.

Moses also misread his own position. In 1962, when Governor Nelson Rockefeller wanted his state parks chairmanship, Moses threatened to resign all of his state posts. That move had always worked on lesser politicians. This time the governor let him go. Moses still kept the TBTA, and with it, in the Daily News’ words, “the power of the purse.”

The end came through the fine print. The legislature voted to fold the TBTA into the new Metropolitan Transportation Authority. Because the bond contracts were written into state law, bondholders could have sued. The largest holder, and agent for the rest, was Chase Manhattan Bank, then headed by David Rockefeller, the governor’s brother. No suit was filed. On March 1, 1968, the TBTA became part of the MTA, and Moses got a consultancy with “the trappings of power, but no real power itself.”

What looked like the powerWhere Moses’ influence came from
Elected officeHe never held one and lost his only race
A mayor’s or governor’s signatureBill language he often drafted
The city budgetToll revenue the TBTA controlled
The power to fire himBond contracts written into state law

Titles explain less than the five bases

French and Raven’s original social-power framework distinguishes legitimate, reward, coercive, expert, and referent power. These describe different reasons one person’s influence can affect another.

BasisWhat provides influenceAn illustrative situation
LegitimateAn accepted role or authorityA chair runs the agreed voting process
RewardControl over something valuedAn organizer allocates desirable opportunities
CoerciveAbility to impose an unwanted consequenceSomeone can withdraw access or impose a penalty
ExpertRelevant knowledge or skillA technician identifies a feasibility constraint
ReferentIdentification, respect, or attachmentMembers follow a trusted participant’s example

Moses drew on several at once. His titles gave him legitimate power. Toll money let him reward allies with projects. His legal and engineering skill was expert power. The categories overlap, and the table does not rank them or imply that every use of authority is improper.

Power Dynamics: Bases of power diagram
Power Dynamics: Bases of power diagram

Trace one decision before you judge a group

Start with one decision rather than a general claim that a place is “political.” The thirteen lenses below are an original diagnostic map of where influence can appear along a process. They are not a validated scientific typology.

Practical lensWhat it can change
Final sayWhich remaining option is chosen
InformationWhich relevant facts become visible
InterpretationHow ambiguous criteria are applied
VetoWhether a proposal can proceed
KPI or targetWhich results participants prioritize
Reward and punishmentWhich actions carry benefits or penalties
ExecutionHow a rule is translated into action
ResourcesWhether money, time, or capacity is available
AgendaWhat is discussed and when
AccessWho can raise an issue with the relevant person
RelationshipsWhose support helps a proposal travel
AppointmentWho occupies a role with decision rights
ExceptionWho can depart from the normal process

Run Moses through it. Drafting bills gave him the agenda and interpretation. Tolls gave him resources. His own staff handled execution. The bond contracts worked like a veto over any attempt to restructure him. A mayor had final say on paper, but over options Moses had already shaped.

The same lenses apply to a team choosing new software. If a proposal never reaches the shortlist, the person who signs cannot choose it. The information-asymmetry guide explains why controlling relevant facts can affect a choice without any change in the formal hierarchy. A target can also steer people, as Goodhart’s law shows.

Power Dynamics: Decision chain diagram
Power Dynamics: Decision chain diagram

Map power with evidence

Use this original mapping procedure when a decision feels hard to read:

  1. Specify the outcome. “Choose the team’s new software” is more useful than “understand the department.”
  2. List the stages. Include proposal, filtering, interpretation, approval, funding, and execution where relevant.
  3. Name who can change each stage. Record the action they can take, beyond their title.
  4. Collect a concrete observation. A written approval rule is stronger evidence than an assumption that somebody has influence.
  5. Distinguish authority from dependency. An expert can affect feasibility without owning the final choice.
  6. Identify a proportionate next action. Request missing information, clarify a decision right, or make the criteria visible.

A compact record might read: “Finance checks affordability; a tool above the approved budget cannot proceed; this is in the published purchasing rule.” That is easier to assess than “finance controls everything.” For day-to-day roles, see the workplace power-dynamics guide.

Power Dynamics: Practical map diagram
Power Dynamics: Practical map diagram

When power mapping backfires

Questions

Is power dynamics always about hierarchy?

No. Formal rank is one source. Expertise, dependency, relationships, resources, and access matter in groups without a clear hierarchy.

Does an imbalance mean someone is abusing power?

No. Unequal responsibilities and expertise are common. Misuse needs evidence about conduct, rules, and effects, beyond the imbalance itself.

How do I avoid reading motives into everything?

Describe observable actions and decision rights first. “The proposal requires this approval” is a checkable claim. “The approver wants to undermine us” needs much stronger evidence.

Your 5-minute power map

One decision I care about:
Stages it passes through:
Who can change each stage (action, not title):
One piece of written evidence for each:
Where I depend on someone without authority over me:
A benign explanation I haven't ruled out:
My one proportionate next step:

Pick one stalled decision this week, then use Slow Down to map it before you react.