"Who can issue securities to the public, and what must they disclose?"
Every advanced economy has settled on the same basic deal: a firm can raise capital from the general public, but only if it commits to ongoing disclosure of its financial position, governance, and material risks. The deal is the foundation of public markets. Without enforceable disclosure, retail investors have no way to price securities, and without that, public markets cannot exist at scale.
The deal sounds simple. The implementation is not. Every securities regime has had to answer the same set of design questions: what counts as a "security" in the first place? What information must issuers disclose, and on what schedule? Who enforces the rules, and through what mechanisms — government prosecutors, private litigation, or both? What about secondary trading — market manipulation, insider trading, short selling, high-frequency trading? Countries have answered these questions differently, and the differences are consequential.
Disclosure-based regimes (the US and UK approach) require issuers to disclose comprehensively but generally don't pass judgment on whether an investment is good or bad — let the market decide. Merit-based regimes (some Asian markets historically, some EU member states for retail products) allow the regulator to block offerings deemed unsuitable. The trend over recent decades has been broadly toward disclosure-based, though merit elements survive in retail-product approval.
The US relies heavily on private securities litigation — class-action lawsuits by shareholders against firms and their officers — alongside SEC enforcement. The EU and UK rely far more heavily on public enforcement by the regulator, with private litigation playing a much smaller role. The US private-litigation channel creates strong incentives for disclosure but also significant litigation costs that affect listing decisions; the European public-enforcement model is more measured but also less feared.
The US Securities and Exchange Commission largely operates a rules-based regime — detailed, prescriptive requirements with bright-line tests. The UK Financial Conduct Authority operates a more principles-based regime, with high-level standards (e.g., "treat customers fairly") backed by enforcement against violations of those principles. Each approach has costs: rules are gameable and inflexible; principles create uncertainty about what's required. Most modern regulators use some mixture of both.
The US system rests on two 1930s statutes responding to the 1929 crash. The Securities Act of 1933 governs primary issuance (IPOs, secondary offerings) and requires registration with the SEC unless an exemption applies. The Securities Exchange Act of 1934 governs secondary trading, created the SEC, and imposes ongoing disclosure (10-K, 10-Q, 8-K) on public companies. Private securities litigation under SEC Rule 10b-5 makes class actions a defining feature of US securities enforcement.
The EU framework operates on two layers: regulations directly binding in all member states, and directives requiring national implementation. The Prospectus Regulation (2017) standardizes IPO and offering disclosure across the EU. MiFID II (2018) regulates investment-services firms, trading venues, and market conduct. MAR — the Market Abuse Regulation — handles insider trading and manipulation. The European Securities and Markets Authority (ESMA) coordinates national supervisors but does not directly supervise issuers.
UK securities regulation derives from the Financial Services and Markets Act 2000 and is administered by the Financial Conduct Authority. Post-Brexit, the UK has begun divergence from EU rules but the underlying architecture remains similar. The UK has historically been the leading proponent of principles-based regulation, expecting firms to interpret high-level standards (e.g., the FCA's eleven Principles for Businesses) in their specific context. The Wholesale Markets Review and FCA Listing Rules reform have sought to make UK listings more competitive post-Brexit.
Japan's Financial Instruments and Exchange Act (FIEA, 2006) consolidated multiple earlier laws into a single comprehensive framework, modeled on US-style disclosure but with distinctive enforcement. The Financial Services Agency (FSA) supervises listed issuers and intermediaries; the Securities and Exchange Surveillance Commission (SESC) handles investigations and enforcement. Japan's "Big Bang" reforms (1996-2001) liberalized the financial sector and modernized disclosure, while more recent reforms (Stewardship Code 2014, Corporate Governance Code 2015) tackle the governance side. Private securities litigation remains far less common than in the US.
The deepest cross-jurisdictional divergence is not in what the rules say, but in how they are enforced. The US's combination of SEC enforcement plus private class-action litigation creates the most aggressive enforcement regime among major economies. EU and UK enforcement is more measured, relying more on regulator action and less on private suits. Japan's enforcement has historically been the lightest of the four, though this has tightened materially since 2006.
For students this matters because the level of litigation risk affects every public-company decision — what to say in earnings calls, whether to provide forward guidance, how to structure disclosures, whether to list publicly at all. Two firms with identical operations in identical industries can have very different governance regimes simply because they list in different jurisdictions. The "burden" of US securities law is also part of why the US has historically attracted so much capital — investors value the protection.
Lessons: Financial Statements covers what public firms must disclose; Multiples Valuation depends on the disclosure these laws require.
Directory: SEC, FCA, AMF (France), and BaFin (Germany).