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	id03.html slides-id03.pdf slides-id03.tex 
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html and slides for jean's identity/egovernment workshop


--- NEW FILE: id03.html ---

<HTML>
<HEAD>
<title>Reputation
</title>
</head>

<h2>Reputation</h2>
<h4>Roger Dingledine, Michael J Freedman, David Molnar, David Parkes,
Paul Syverson</h4>

<!--
Reputation is rooted in trust: trust in the opinion of someone
familiar, as when a neighbor speaks highly about his doctor; trust in
some authority, as when <i>Consumer Reports</i> evaluates the quality of
an automotive model; or trust in the collective opinion of a group, as
when a public survey indicates what car is popular or what most
pediatricians give their kids for headaches.

[...1026 lines suppressed...]
George A Akerlof. The Market for Lemons: Quality Uncertainty and the
Market Mechanism. Quarterly Journal of Economics. 84:488-500, 1970.

C. Avery, P. Resnick, R. Zeckhauser (99). The Market for Evaluations.
American Economic Review 89(3): 564-584.

Nolan Miller, Paul Resnick and Richard Zeckhauser. Eliciting Honest
Feedback in Electronic Markets. August, 2002. SITE'02.

R. Axelrod. The Evolution of Cooperation. 1984. New York: Basic
Books.

S. Bikchandani, D. Hirshleifer, and I. Welch. A Theory of Fads,
Fashion, Custom and Cultural Change as Informational
Cascades. J. Pol. Econ., 100(5) 992-1026.
</pre>

</body>
</html>


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--- NEW FILE: slides-id03.tex ---

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\newcommand\slidetitle[1]{\begin{center} \huge #1 \end{center}}

\begin{slide}
\begin{center}
\Huge
Online Reputation Systems\\
\vspace{1in}
Roger Dingledine\\
\vspace{.5in}
The Free Haven Project\\
\end{center}
\end{slide}

\begin{slide}
\slidetitle{Based on linkability}
\large
\begin{tightlist}
\item Reputation can help solve market for lemons %(asymmetric information)
\\
Useful even in pseudonymous/dynamic environments
\item But sometimes dangerous if people can make many separate identities
\item Less useful if you don't have options,\\ or
when one action doesn't affect the next
\end{tightlist}
\end{slide}

\begin{slide}
\slidetitle{Facets of reputation}
\Large
\begin{tightlist}
\item Tool to predict the future based on past behavior
\item Tool to change the future by giving people incentive to behave well
\item Tool for risk management
\end{tightlist}
\end{slide}

\begin{slide}
\slidetitle{When should you use it?}
\large
\begin{tightlist}
\item What's at stake?
\item Does a rep in one context work for a new context?
\item Can we tie people to their online identities?\\ Do we need to?
\item Can we verify behavior and measure reputation?
\item Can we predict behavior based on reputation?
\end{tightlist}
\end{slide}

\begin{slide}
\slidetitle{Some successful examples}
\Large
\begin{tightlist}
\item eBay
\item Amazon
\item Slashdot
\item Google
\end{tightlist}
\end{slide}

\begin{slide}
\slidetitle{Reputation can mean privacy}
\Large
\begin{tightlist}
\item We already have separate reputations for separate communities
\item Why should eBay get to know what books I buy from Amazon?
\item Knowing what info you need means you don't have to collect other info
\item Liability / identity theft
\end{tightlist}
\end{slide}

\begin{slide}
\slidetitle{State of the art}
\Large
\begin{tightlist}
\item Reputation research is a young field
\item We have neat ideas, but few `products'
\item Who knows what we can and can't do?
\item But we use it every day in our lives, so it's a piece of every
scenario
\end{tightlist}
\end{slide}

\end{document}


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