Artificial intelligence, not taxes but concessions to curb Big Tech
With regard to large digital companies, Europe should undertake a different strategy than taxation
4' min read
Key points
4' min read
In the context of the upcoming tariff negotiations with the United States, the topic of taxation of large digital companies, so-called Big Tech, has reopened. As is well known, the top seven digital companies have a market capitalisation greater than the GDP of many countries but pay little tax on their profits. The debate immediately took a political turn (pro- or anti-taxation, pro- or anti-US), which does nothing to help address the problem.
As is now clear, digital enterprises are structurally different from the rest of the production system, both on the demand and supply side.
How is the value calculated?
.The demand for digital services is in fact subject to very strong network externality effects: the value that users derive from services does not only depend on their quality, but on the overall number of those who have adopted them. The value of Facebook is not only given by its technology, but by the fact that we find all our friends there, just as on Linkedin we find all our colleagues. This effect means that once a digital service has reached a critical mass of adopters, it attracts the whole market to it.
On the supply side, digital firms are not subject to what economists call the law of diminishing returns, generated by the saturation of plant capacity. Digital firms have incurred huge fixed costs to create the initial technological infrastructure (and many in fact have gone bankrupt), but once these costs have been absorbed they can expand production without limit, at negligible marginal costs. As Hal Varian (in the meantime become Google's chief economist) explained back in 1999, in the digital world the cost is incurred to produce the first unit, but the reproduction cost from the second unit onwards is negligible and tends to zero.
The combination of these supply and demand conditions generates an unprecedented situation: there is no upper limit to the growth in size of digital companies, which therefore inevitably tend towards monopoly.

