We model the regulation of irreversible capacity expansion by a firm with private information about capacity costs …

scope for ex-ante regulation of mandatory data sharing that improves social welfare better than competing interventions such … as barring entry, break-up, forced divestiture, or limiting recommendation steering. These alternate proposals do not … value created by network effects. It also enables regulatory oversight but limits data privacy leakages. We discuss crucial …

scope for ex-ante regulation of mandatory data sharing that improves social welfare better than competing interventions such … as barring entry, break-up, forced divestiture, or limiting recommendation steering. These alternate proposals do not … value created by network effects. It also enables regulatory oversight but limits data privacy leakages. We discuss crucial …

(off-net) networks is shown to restore competition. This regulation requires neither demand data nor information about call …We analyse competition between perfectly substitutable networks. Monopolization can be sustained in equilibrium by … asymmetric access prices whereby entry is deterred by a set of margin squeezes. A regulatory package consisting of (i) mandatory …

of the problem and can make access regulation unnecessary. For instance, inducing mobile operators to apply RPP instead …

We develop a model of competition between interconnected networks, with separate local and long-distance markets …, allowing for various degrees of symmetry between carriers. Assuming two part pricing, we show that effective competition can be … interconnected local networks want to agree on cost based interconnection charges, but that through competition for local market …

, incomplete and irregular network can be stable, with firms observing high variance signals acting as "critical nodes". Finally …, when signals are correlated, the empty network may not be pairwise stable when the number of firms and/or correlation are …

When two networks interconnect, one network may value the connection more than the other. In an unregulated environment … network size. If users face decreasing marginal returns to network size, a small network benefits more from interconnection … than a large network. Assuming that pricing between networks reflects this asymmetry, large networks can charge smaller …