I'm sorry, I don't buy it.
Especially when you consider in many western countries many people are experiencing congested lines at peak hours. Duplicated infrastructure in these cases are not only a negative but a positive.
So without duplicated infrastructure, we would be experiencing even more congestion so I don't get what your not buying.
Ideally wholesale prices should be set before the infrastructure is built. Then telcos know what they get themselves into.
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In South Africa, DSL was never unbundled. But it's still in decline due to competition from 4G and fiber.
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IMHO a lot of innovative business models are built on zero rating. Based on what the article says about prices and your thoughts on innovation, zero rating may actually be a good thing.
That was the basis of a lot of early 20th century regulatory thinking. That was thoroughly discredited because it turns out that government price controls are worse than duplicated infrastructure.
Governments only have an incentive to keep prices low, which is not the same as the economically efficient price. From the government’s point of view, it’s better to have cheap 3G networks forever than to have prices that lead to investment into 4G and 5G networks. Low prices kill innovation, which is why all the innovation is happening in IPhones and Macs and Surface tablets and not cut-rate Acer and HP products.
MVNO pricing is not set by regulators. The FCC’s last major foray into rate regulation, in connection with DSL loop unbundling, ended up killing DSL as a viable competitor to cable because wholesale prices were set so low there was no incentive to upgrade DSL networks.