The share of immobile persons, i.e. persons not leaving their homes on a given reporting day, is both a central result and a prime quality indicator of a travel diary survey. The wide range of values for the share of immobiles reported in travel diary and time budget survey literature has...

The past 20 years has seen a rapid growth across the world in the number, range and scale of voluntary travel behaviour change (VTBC) initiatives. These so-called 'soft' measures have challenged the assumption that modal shift is only possible through 'hard' system-based measures, or through...

"Im folgenden wird der Versuch gemacht - auf der Basis der Angaben von 1969 Betrieben des verarbeitenden Gewerbes aus dem Jahre 1976 - Arbeitsplätze nach Qualifikationsanforderungen und nach Attraktivität der Arbeitsbedingungen zu strukturieren und zu ermitteln, wo ausländische Arbeitnehmer...

VDSL and G.fast Vectoring are transmission technologies over copper access line pairs enabling the transmission of higher bandwidth to the end customers, but harm the infrastructure based competition using physical unbundled copper lines. Thus regulators have to decide between infrastructure...

"Im folgenden wird der Versuch gemacht - auf der Basis der Angaben von 1969 Betrieben des verarbeitenden Gewerbes aus dem Jahre 1976 - Arbeitsplätze nach Qualifikationsanforderungen und nach Attraktivität der Arbeitsbedingungen zu strukturieren und zu ermitteln, wo ausländische Arbeitnehmer...

Our market modelling approach aims at practically determining wholesale pricing policies for the switch from copper to fibre access networks. It asks which market equilibria for incumbents and entrants result from different combinations of copper and fibre wholesale access charges. We first...

VDSL Vectoring is a transmission technology over copper access line pairs enabling the transmission of higher bandwidth to the end customers, but harms the infrastructure based competition using physical unbundled copper lines. Thus regulators have to decide between infrastructure based...

VDSL Vectoring is a transmission technology over copper access line pairs enabling the transmission of higher bandwidth to the end customers, but harms the infrastructure based competition using physical unbundled copper lines. Thus regulators have to decide between infrastructure based...

There is an ongoing discussion in the market which Next Generation Access (NGA) architecture best suits future needs and which investment and cost differences exist. The discussion can be subsumed as P2P vs. GPON, which is somewhat misleading as this article reveals. The discussion is driven by...