Open source software, developed by volunteers, appears counter to the conventional wisdom that private provision of public goods is socially more efficient. But complexity makes a difference. Under standard models, development contracts for specialized software may be difficult to write and...

Does the disclosure requirement of the patent system encourage the diffusion of inventions? This paper builds a simple model where firms choose between patents and trade secrecy to protect inventions. Diffusion is not necessarily more likely with a patent system nor is the market for technology...

When innovation is cumulative, early patentees can hold up later innovators. Under complete information, licensing before R&D avoids holdup. But when development costs are private information, ex ante licensing may only occur in regimes with sub-optimal patent policy

This paper measures plant-level productivity gains associated with learning curves across the entire manufacturing sector. We measure these gains at plant startups and also after major employment changes. We find: 1) The gains are strongly associated with a variety of human capital measures...

U.S. legal changes have made it easier to obtain patents on inventions that use software. Software patents have grown rapidly and now comprise 15 percent of all patents. They are acquired primarily by large manufacturing firms in industries known for strategic patenting; only 5 percent belong to...

What is the impact of the European Union’s General Data Protection Regime (“GDPR”) and data regulation on AI startups? How important is data to AI product development? We study these questions using unique survey data of commercial AI startups. AI startups rely on data for their product...

Do firms displace labor with new information technologies such as “artificial intelligence”? It is challenging to distinguish the effects of technology adoption from unobserved productivity and demand shocks. We take a first look at the economic impacts of large custom software investment...

New machine learning techniques have led to an acceleration of "artificial intelligence" (AI). Numerous papers have projected substantial job losses based on assessments of technical feasibility. But what is the actual impact? This paper reports on a survey of commercial AI startups, documenting...

Patent race models assume that an innovator wins the only patent covering a product. But when technologies are complex, this property right is defective: ownership of a product's technology is shared, not exclusive. In that case I show that if patent standards are low, firms build "thickets" of...

New "artificial intelligence" (AI) technology promises to bring dramatic social and economic changes, demanding major policy changes. In intellectual property and antitrust law, AI will exacerbate a damaging trend: across all major sectors of the economy, proprietary information technology is...