"Summary:
For the past half-century, much of the developed world has experienced a
puzzling slowdown in productivity growth—the rate at which workers and
businesses become more efficient over time. While digital technologies
have advanced at a remarkable pace, innovation in the physical world has
slowed considerably. The problem is not a lack of scientific
breakthroughs or a shortage of good ideas. Rather, it is a failure to
translate discoveries into products, infrastructure, and services that
improve everyday life. This slowdown is largely the result of policy
choices. By reforming outdated permitting systems, using innovation
incentives such as R&D prizes and Advance Market Commitments, and
reducing barriers created by protected local monopolies, we can
accelerate the spread of new technologies and usher in a new era of
prosperity.
In a previous exploration of the housing affordability crisis,
I observed a sobering reality: artificial scarcity is often a policy
choice. We have placed arbitrary limits—mostly through local
governments—on our ability to build homes, driving up costs and
restricting opportunity. But this pattern of self-imposed constraint
does not stop at the edges of our neighborhoods. It extends into the
institutions and policies that shape economic growth. It is one of the
primary reasons why, despite living in an age of extraordinary digital
innovation, we remain stuck in a decades-long productivity slump.
Economists
often measure technological progress using a concept called Total
Factor Productivity (TFP). In simple terms, TFP measures how efficiently
an economy turns labor, land, and capital into goods and services. When
TFP rises, society discovers better ways to produce more with the same
resources.
From the 1920s through the early 1970s, TFP in the United States and much of the developed world grew at more than 2 percent per year.
This was the era that gave us commercial aviation, widespread
electrification, antibiotics, and the Apollo program. The physical world
was transformed in a single generation.
Since the early 1970s, however, productivity growth has slowed dramatically to less than 1 percent in most years. As investor Peter Thiel famously quipped,
“We wanted flying cars; instead, we got 140 characters.” Digital
technologies have advanced rapidly, while progress in energy,
transportation, infrastructure, and advanced manufacturing has been far
slower. We can send vast amounts of information across the globe in
milliseconds, yet we often struggle to build major infrastructure
projects on time or on budget.
A 2020 paper by Nicholas Bloom and co-authors argues that good ideas are getting harder to find – that is, more investment in research and development has become necessary for each new patentable idea. However, more recent research by Teresa Fort and co-authors
(currently in working paper form) suggests that this is not the case.
The Bloom et al. result may, in fact, be an artifact of focusing on
manufacturing firms, which were dominant from about 1970 to 1990. Fort
and her co-authors show that patenting and innovation have shifted in
recent decades, becoming dominated by firms in information, management,
and professional services.
Because
manufacturing is a physical process, it is much more likely to be
subject to, for example, environmental regulations, whereas an IT firm
operates in a much less regulated sector. So, our relative stagnation
may not be the result of a scientific drought after all. Universities
and research laboratories continue to produce remarkable discoveries. We are not failing at invention; we are failing at diffusion, the process of turning new discoveries into widely used products and services.
The Diffusion Deficit and the Permitting Veto
Innovation
does not benefit society until it escapes the laboratory and enters the
marketplace. The journey from a peer-reviewed paper to a consumer-ready
product is long, expensive, and uncertain. Over time, policymakers have
added layer upon layer of regulatory complexity to that journey.
Physical
innovation requires physical construction. New technologies need
testing facilities, advanced laboratories, semiconductor fabrication
plants, energy infrastructure, and transportation networks. Yet building
almost anything of significance in the modern West often requires
navigating years of environmental reviews, public-comment periods, and
multi-agency approvals.
Laws
such as the National Environmental Policy Act (NEPA) and state-level
counterparts such as the California Environmental Quality Act (CEQA)
were originally intended to prevent environmental harm. Over time,
however, they have increasingly become tools for the delay of progress.
Because these laws frequently allow opponents to challenge projects on
procedural grounds, they have contributed to what political scientist
Francis Fukuyama calls a “vetocracy”—a system in which many actors can block decisions but few can make them. Average NEPA environmental impact statements now take almost four years to complete, with many extending far beyond a decade. Thankfully, the median is a bit shorter, but still about 2.5 years.
Consider
the recent push to reshore semiconductor manufacturing. While the
government has allocated billions of dollars in subsidies to build these
vital factories, the physical construction is bottlenecked by years of
permitting and environmental reviews. A state-of-the-art fabrication
plant (commonly called a “fab”) that takes 18 months to build in Taiwan
or South Korea can take three to five years just to obtain a permit in the United States.
The
result is predictable: projects take longer, cost more, and become less
attractive to investors. Even when governments provide subsidies for
strategic industries such as semiconductor manufacturing, years of
permitting can slow implementation. Time is money, and prolonged
regulatory uncertainty discourages investment in capital-intensive
industries.
The
solution is straightforward, even if politically difficult. Critical
infrastructure, advanced manufacturing facilities, and research
laboratories should face streamlined approval processes. If projects
satisfy clearly defined environmental and safety standards, they should
be approved in months rather than years.
Pull Mechanisms: R&D Prizes and Commercialization
Reducing regulatory barriers is only part of the solution. We must also rethink how innovation is encouraged and financed.
In
addition to corporate financing, most governments try to support
innovation through “push” funding. Researchers receive grants to conduct
experiments, purchase equipment, and explore new ideas. This model,
some economists argue, can be effective for basic science, especially
when commercial applications may be years away.
Commercialization
presents a different challenge. Many promising technologies fall into
what innovators call the “Valley of Death” – the difficult period
between a successful laboratory demonstration and a commercially viable
product. At this stage, development costs rise sharply while uncertainty
remains high.
That
is where “pull” mechanisms become valuable. Instead of paying for
research inputs, policymakers reward successful outputs. An Advance
Market Commitment (AMC), for example, guarantees that a buyer will
purchase a product if it is successfully developed. Rather than funding
every possible approach, the sponsor commits to paying for results.
Economist Michael Kremer helped pioneer this approach through vaccine development programs.
More recently, Operation Warp Speed demonstrated its effectiveness. The
government did more than fund vaccine research; it guaranteed large
future purchases for successful vaccines.
By reducing market risk, policymakers encouraged firms to accelerate
development and manufacturing simultaneously. The result was one of the
fastest vaccine-development efforts in history.
Consider other approaches. Throughout history, prizes have also stimulated innovation. The Longitude Prize helped solve a critical navigation problem for maritime trade, while the Ansari X Prize
helped launch the private spaceflight industry. Pull mechanisms align
private incentives with public goals by rewarding success rather than
political connections or grant-writing skill.
Breaking Local Monopolies and Regulatory Capture
When
people hear the word “monopoly,” they often think of large technology
companies. Yet some of the most significant barriers to innovation exist
at the local level.
The
electric utility sector provides a clear example of how regulatory
design shapes technological adoption. Because most utilities operate as
regulated monopolies with government-guaranteed rates of return on
capital investments, their business model relies on continuous,
large-scale infrastructure growth.
Put
simply, utilities make more money the bigger power plants and power
lines they build, so they usually prefer huge projects over things like
rooftop solar panels that let people generate their own power without
the utility having to build as much infrastructure.
Decentralized
energy technologies—such as local battery storage, micro-grids, and
advanced management software—directly threaten this model by optimizing
the existing grid and reducing the need for new capital projects. As a
result, studies from the MIT Energy Initiative and industry financial analysts
indicate that utilities frequently leverage legacy regulatory processes
to delay or block these decentralized innovations from integrating into
the wider network.
Similar dynamics exist elsewhere. State
dealership franchise laws frequently restrict direct-to-consumer
automobile sales, making it more difficult for new manufacturers to enter the market. Occupational licensing requirements now affect roughly one-fifth of American workers and can create barriers to entry that limit competition and labor mobility.
Innovation
depends on what economist Joseph Schumpeter called “creative
destruction” – the replacement of older, less efficient business models
with better ones. When established interests use regulation to shield
themselves from competition, they slow technological adoption and reduce
future productivity growth. Encouraging competition and reducing
regulatory barriers at the state and local level would help accelerate
the diffusion of new ideas throughout the economy.
Choosing Abundance
The
productivity slowdown is not an immutable law of nature. It is, at
least in part, the consequence of policy choices. Human ingenuity
remains as powerful as ever. We have more scientists, more capital, and
better tools than any previous generation. The challenge is not
generating ideas; it is allowing those ideas to spread.
By
streamlining permitting processes, expanding the use of R&D prizes
and Advance Market Commitments, and reducing barriers created by
protected local monopolies, we can accelerate innovation in the physical
world.
An
additional one or two percentage points of annual productivity growth
may sound insignificant. Yet when compounded over decades, the effects
are transformative. Higher productivity means higher incomes, better
health outcomes, more abundant energy, and greater opportunities for
future generations. The ideas already exist. The question is whether we
will allow them to flourish."