Transcript 4.03 Slides

Reputation and Trust
Uncertainty and Risk
What are the Solutions to Uncertainty in the
Social Environment?

Proxy’s and ‘inferred trustworthiness’

Herd behavior

If everyone is using it, it has to be
good…right?

Closed Systems versus Open Systems

3rd party reputation is perhaps the most
common solution

What about when reputation is not possible
(or practical)?
3
Reputation as a Solution to the Problem of
Uncertainty: Information Asymmetries

Problem of Lemons (Akerlof, 1970)
 Information
asymmetry in the
marketplace
4
What constitutes a reputation?

What they do…







Foster good behavior
Punish bad behavior
Reduce risk in long term
Transmission can be word-of-mouth, or
more chronicled directly
Reputations concern people and
organizations, not things.
To be effective, require clear criteria and
incentives
Explicit or Implicit?
5
Positive, Negative and Mixed Reputation
Systems



Positive
 Start at a baseline, can only go up.
Negative
 Start at a baseline, can only go down.
Mixed
 Start at a baseline, can go below or
above baseline
6
For



rd
3
Party Reputations to Work...
Must have permanent identities.
Must make the feedback
available for others to inspect.
Individuals have to actually pay
attention to and use the
reputations.
7
Trust and
Trustworthiness
Trustworthiness

Assessing Trustworthiness

Treated as a ‘characteristic’

Involves initial, one-shot interactions between parties

Theoretically linked to perceived competence and motivations of a
given partner


Competence to act in a way we deem appropriate
Motivation to act in our best interests
9
Example Study Examining Trustworthiness:
Online Sale Survey
Assessing Trustworthiness

Tseng and Fogg (1999)






[from Hertzum Anderson, et al]
First-hand experience
Reputation
Surface ‘attributes’
Stereotypes
First-hand experience is essential to building ‘trust’, as well as 3rd party
reputations
Surface ‘attributes’ and ‘stereotypes’ more accurately about assessing
trustworthiness.
12
Approaches to Trust

Psychology
 Trust as “personality trait” (dispositional trust)
 Trust as learned experience (learned trust)

Philosophy
 Trust versus reliance and other concepts

Sociology
 Trust as behavior (situational trust)

Through risk and uncertainty

Other factors such as the medium (i.e., CMC)

Perceptions based on characteristics: assessment of
trustworthiness

Trust as cognitive: It is reflected in attitudes about
another’s desire and ability to act in a positive way
towards us in a given context.
13
“Trust concerns a positive expectation
regarding the behavior of somebody
or something in a situation that entails
risk to the trusting party.”
“Trust exists whether it is explicitly
recognized or not”
(Marsh and Dibben)
Trust-Building in Sociological
Sense

Trust-building
 Involves
repeated interactions between parties
 Theoretically
linked to risk in the social exchange
situation (e.g., what is at stake in the interaction?)
 Trust
is not the same as cooperation
 Trust-building
can involve various types of uncertainty,
which is also distinct from risk. (e.g., how confident are
we in a particular outcome?)
15
Locus of Trust

Interpersonal Trust

Organizational Trust
 Do

organizations ‘trust’?
Society-level Trust
 “general
trust”
16
Trust versus Reliance

Role of Betrayal

If we rely on someone to do
something, if he/she/it does not do
so we are disappointed.
 i.e., inanimate objects (car
brakes, computer)

Role of ‘monitoring’ systems

Monitoring and surveillance of
individuals: trust, distrust, or
reliance?
17
Trust in Information and Information Systems



“providers”
 E.g., virtual agent representations
“trusted systems”
But is it really “trust” or just
reliability?
18