Not necessarily. Acquisitions can help technology companies combine complementary capabilities, but buying a rival or promising start-up can also weaken independent innovation and competition. The evidence does not establish that M&A is replacing in-house R&D across the tech industry, nor does it support treating the whole industry as one oligopoly. Whether a deal is good news depends on what is being bought, what happens to its innovation, and what the market would look like without the merger.
Is M&A actually becoming the new R&D?
That claim sounds like a measurable trend: technology firms would be relying increasingly on acquisitions, rather than their own research and development, to create or obtain new capabilities. The available findings do not establish that shift. They do not provide a consistent historical comparison of major technology firms’ acquisition activity against their internal R&D spending or output.
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M&A and R&D are also not interchangeable measures. R&D spending is an input; patents, products and improved services are possible outputs. An acquisition transfers ownership of a business, team, technology or other assets. It may supplement a buyer’s research, redirect it, or replace work the target might otherwise have done independently. Evidence that a particular acquisition affected patenting does not, by itself, show that acquisitions have displaced internal research across the industry.
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When can a technology acquisition support innovation?
Some deals join capabilities that work better together: for example, complementary technologies or expertise that lets a buyer develop, integrate or distribute a product more effectively. The OECD’s 2018 review, Theory and evidence on the potential effects of mergers: Concentration in Seed Markets, summarizes a study of 31 deals in which technological complementarity was associated with increased R&D effort and efficiency. That is evidence for a possible mechanism, not a guarantee that a complementary deal will improve innovation in every industry.
Vertical mergers—combining firms at different stages of a supply chain—raise a distinct question from buying a direct innovation rival. The OECD’s 2019 analysis of technology, media and telecom says these mergers are often motivated by coordination and economies of scope. It also warns that a combined firm may harm competition through foreclosure or collusion. Coordination benefits therefore need to be weighed against whether competitors could lose access to an important input, route to market or customer base.
When can an acquisition weaken innovation or competition?
Buying a close or emerging competitor
An acquisition of a direct rival can change incentives even if the combined company keeps some research going. The OECD’s 2018 review describes evidence that where firms’ technologies are substitutes—especially for direct rivals—mergers have been associated with reduced R&D effort. The review discusses possible channels including employee turnover, a narrower research portfolio, a shorter research horizon and less internal funding for R&D. These are reported findings and mechanisms from the studies it summarizes, not universal outcomes of horizontal mergers.
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What happens to the acquired team and its research?
The OECD’s 2025 study, Acquisitions and their effect on start-up innovation: Stifling or scaling?, uses firm-level data covering 60 countries from 2001 through 2021. It reports that acquired start-ups were highly innovative before acquisition and that their patenting declined afterward, without a corresponding increase in the acquirors’ innovation activity in the study’s sample. The authors raise the concern that some acquisitions may serve anti-competitive purposes rather than enhance innovation.
The finding is a reason to examine how innovation changes after a deal, not a universal causal verdict on all acquisitions. The study focuses on acquired start-ups; its results should not be treated as a forecast for every kind of merger or every technology market.
What do broader merger findings show?
A European Commission summary published on 4 September 2026 describes an ex-post assessment of more than 3,000 mergers reviewed and cleared, with or without conditions, by the Commission between 1990 and 2024. It reports average decreases in citation-weighted patent output and increases in average markups and accounting profits for merging firms and rivals. The summary says that joint pattern is more consistent with increased market power than with merger-induced efficiencies.
Those are average findings for the reviewed-and-cleared merger sample, not a verdict on every merger or a result limited to technology deals. The OECD start-up study and the Commission assessment also cover different populations and periods; they should not be combined as if they were one experiment.
How should you judge whether a deal is good or bad news?
Start with the competitive relationship between the companies, then ask what changes after the transaction. The relevant comparison is not simply “merger versus no merger” in the abstract: it is the likely outcome of this specific deal against the most plausible path without it.
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- Identify the relationship. Are the companies direct rivals, potential or nascent competitors, suppliers and customers, or firms with complementary technologies? A vertical integration deal and an acquisition of a close competitor pose different risks.
- Check the innovation counterfactual. What research, product or competitive threat could the target plausibly have pursued independently? What evidence supports that possibility?
- Track both sides of the deal. Does the acquired team continue innovating, become integrated into a complementary effort, or have its projects discontinued? Does the acquiror’s own innovation activity change?
- Look beyond patent totals. Consider product development, quality, entry, consumer outcomes and access to essential inputs alongside patent output and R&D effort.
- Test the efficiency explanation. Are claimed coordination or scope benefits specific to the transaction, and do they plausibly offset reduced rivalry? Also consider changes in markups, profits, market access and the ability of rivals to compete.
The FTC says its Bureau of Competition seeks to prevent mergers likely to reduce competition, including through reduced innovation, and that investigators examine market dynamics and effects on consumers. This describes the agency’s role; it does not mean every deal is reviewed or blocked. The OECD’s 2026 paper on competition in the age of AI likewise describes an uneven, dynamic landscape in which AI start-ups are frequently acquired by large incumbents and firms with stronger existing capabilities may have advantages. Its summary does not establish that such acquisitions replace internal R&D or quantify their effect on concentration across all technology markets.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What does “the oligopoly dominating tech” mean?
An oligopoly is a market in which a small number of firms hold substantial competitive power. It needs to be defined for a particular product or service and geography: there is no single concentration measure here that establishes that the entire technology industry is one oligopoly. A market can also have powerful incumbents while facing meaningful competition from new entrants, adjacent products or firms at another level of the supply chain.
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For incumbents, acquisitions can be good news when they add complementary capabilities, but buying a competitor may also reduce the pressure to innovate or improve terms for customers. For rivals, workers and consumers, the implications depend on whether the deal produces useful integration or makes it harder to compete. A finding about innovation alone does not settle the consumer-welfare question; nor does a rise in a company’s profits prove that its products improved.
Why patent evidence is useful but incomplete
Patents offer observable evidence of some inventive activity, but patenting is not innovation itself. Companies differ in how much they patent; important improvements may be protected in other ways or never become patents. Patent counts do not directly measure product quality, commercial success, consumer benefit or the value of ideas that were never pursued.
Citation-weighted patent output adds information about later citations, but it remains a patent-based measure rather than a complete measure of innovation or welfare. R&D spending, patent counts, citation-weighted output, product launches, quality and consumer outcomes answer different questions; none should be used as a substitute for all the others.
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