3 research outputs found
On the Impact of Practical P2P Incentive Mechanisms on User Behavior
In this paper we report on the results of a large-scale measurement
study of two popular peer-topeer systems, namely BitTorrent and eMule,
that use practical and lightweight incentive mechanisms to encourage
cooperation between users. We focus on identifying the strategic
behavior of users in response to those incentive mechanisms. Our results
illustrate a gap between what system designers and researchers expect
from users in reaction to an incentive mechanism, and how users react to
those incentives. In particular, we observe that the majority of
BitTorrent users appear to cooperate well, despite the existence of
known ways to tamper with the incentive mechanism, users engaging in
behavior that could be regarded as cheating comprised only around 10% of
BitTorrent’s population. That is, although we know that users can
easily cheat, they actually do not currently appear to cheat at a large
enough scale. In the eMule system, we identify several distinct classes
of users based on their behavior. A large fraction of users appears to
perceive cooperation as a good strategy, and openly share all the files
they obtained. Other users engage in more subtle strategic choices, by
actively optimizing the number and types of files they share in order to
improve their standing in eMule’s waiting queues; they tend to
remove files for which downloading is complete and keep a limited total
volume of files shared
Flexible Investment Decisions in the Telecommunications Industry: Case Applications using Real Options
The telecommunications sector is one of the most innovative,
high-growth, capitalintensive yet volatile sector of the economy. This
research addresses critical concerns of how, when, and why an enterprise
or a service provider should undertake new investments. The study
investigates the power of flexibility in investment decision making
process, by applying the real options methodology. Five case
applications are studied: a) investment decisions in next generation
wireless networks; b) investing in integrated wireless networks; c)
migration to wireless broadband internet services; d) valuing deployment
of Wi-Fi networks in enterprise markets; and e) valuing Hosted VOIP
services for enterprise markets. The case studies are analyzed both
qualitatively and quantitatively
On the Impact of Practical P2P Incentive Mechanisms on User Behavior
In this paper we report on the results of a large-scale measurement
study of two popular peer-topeer systems, namely BitTorrent and eMule,
that use practical and lightweight incentive mechanisms to encourage
cooperation between users. We focus on identifying the strategic
behavior of users in response to those incentive mechanisms. Our results
illustrate a gap between what system designers and researchers expect
from users in reaction to an incentive mechanism, and how users react to
those incentives. In particular, we observe that the majority of
BitTorrent users appear to cooperate well, despite the existence of
known ways to tamper with the incentive mechanism, users engaging in
behavior that could be regarded as cheating comprised only around 10% of
BitTorrent’s population. That is, although we know that users can
easily cheat, they actually do not currently appear to cheat at a large
enough scale. In the eMule system, we identify several distinct classes
of users based on their behavior. A large fraction of users appears to
perceive cooperation as a good strategy, and openly share all the files
they obtained. Other users engage in more subtle strategic choices, by
actively optimizing the number and types of files they share in order to
improve their standing in eMule’s waiting queues; they tend to
remove files for which downloading is complete and keep a limited total
volume of files shared