Mariana Mazzucato, Professor in the Economics of Innovation and Public Value at University College London and founding director of the UCL Institute for Innovation and Public Purpose, has renewed the global debate over how economies actually generate growth. With the release of her latest book, The Common Good Economy: A New Compass, Mazzucato argues that public investment, not just private enterprise, has quietly financed many of the most transformative technologies of the modern era, from smartphone components to the foundational architecture of the internet.

Her central claim challenges a widely held narrative in business and startup circles, that innovation flows primarily from garage founders and venture capital. Mazzucato contends that this story is at best incomplete. Governments, she argues, have historically taken on the earliest and riskiest bets in technology development, absorbing costs the private market was unwilling to shoulder until returns became predictable.

The Entrepreneurial State and the Case for Mission Oriented Policy

Mazzucato's argument builds on more than a decade of research, beginning with her influential book The Entrepreneurial State, which traced how public funding underwrote high risk, capital intensive innovation across multiple industries. She has since worked directly with governments, including the European Commission, the Italian Prime Minister's office, and the Scottish government, to redesign innovation policy around what she calls mission oriented goals rather than narrow sector fixes.

What Mission Oriented Policy Looks Like in Practice

• Setting bold, measurable public objectives instead of only correcting market failures after they occur.
• Directing patient, long-term public finance toward high risk research with broad societal payoff.
• Structuring public-private partnerships so that both financial risk and eventual reward are shared.
• Using public procurement as a demand-side lever to accelerate adoption of new technologies.

Mazzucato has helped apply this framework in concrete ways, including advising on the creation of a new national investment bank in Scotland and consulting with the European Investment Bank on governance reforms aimed at supporting long-term, purpose-driven finance.

The Common Good Economy and the Shift Beyond Market Failure Thinking

Mazzucato's newest book extends this argument further, proposing that economics has for too long treated public goods and the commons as a correction to market failure rather than a starting point for economic design. She argues that this reactive framing traps policymakers in a cycle of patching problems instead of proactively building the kind of economy needed to address interconnected crises such as climate change, inequality, and public health emergencies.

Core Themes From The Common Good Economy

• A capable, well resourced public sector is necessary to set direction, not simply to step in when private markets fail.
• Climate finance requires patient, mission-driven capital rather than short-term returns focused investment.
• Public and private institutions need reciprocal partnerships, where value creation and value distribution are addressed together rather than separately.
• Measuring economic success requires new metrics beyond GDP growth alone, accounting for public value creation.

Mazzucato has previously estimated that meeting global climate finance needs will require trillions of dollars annually by the end of the decade, a scale she argues is unreachable without governments actively shaping markets rather than waiting to correct them.

Global Policy Influence and Institutional Reach

Mazzucato's ideas have moved well beyond academic circles. She serves as an advisor to a range of governments and international bodies, including work with the World Health Organization's chief economist and engagement with national energy departments on industrial strategy. Her Institute for Innovation and Public Purpose, founded in 2017, runs research and teaching programs that connect innovation economics with practical policy design, spanning areas such as public procurement, state investment banking, and institutional reform.

Her influence has also shaped policy conversations around startups and venture-backed innovation, an area traditionally viewed as a purely private sector domain. By reframing state investment as a foundational input rather than a backstop, Mazzucato's work has prompted policymakers in multiple countries to reconsider how public funds are allocated across research, infrastructure, and emerging technology sectors.