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Engle and Russell (1998) introduce the autoregressive conditional duration (ACD) model to model the dynamics of financial duration. It is recognized that the ACD model can be specified in ARMA form. We show that as long as the innovations of the ACD model follows a lognormal distribution, the...
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This paper provides an overview of telecommunications regulation in the U.S. and in Europe. For each region the history … of telecommunications regulations as well as the current regulatory regime is portrayed. The focus of this overview is on … telecommunications with Internet and broadcasting services. The criteria used by the regulatory authorities to identify those network …
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