CapX Submission Guidelines: Publishing Market-Liberal Commentary

Key takeaways

• CapX runs short, argument-led commentary on economics and policy from a market-liberal position, written for a general British reader rather than a specialist one.
• Editors decide from the pitch. A 120 to 180 word email that states the argument, names the evidence, and explains why the topic matters this week gets read; a full draft attached to a cold email usually does not.
• Most pieces land between 600 and 900 words. Writers who arrive with 2,000 words of material should pitch the narrower argument and offer the rest to a think-tank outlet.
• Unsourced statistics, party-political attacks, and undisclosed affiliations are the three most common reasons a draft stalls after it has been accepted.
• Outlet choice matters as much as pitch quality. Rapid-response sites, think-tank blogs, and specialist technology outlets each reward a different type of writer.

1. Introduction

Market-liberal writers have more places to publish than they did a decade ago, which makes choosing the right one harder. A 900-word argument about planning reform could run on several sites, and only one or two will treat it as a priority that week. CapX submissions occupy a specific slot: a UK commentary site, launched in 2014, that publishes quickly and expects the writer to bring a worked-out argument plus the evidence behind it.

Rejections at outlets like this rarely come down to ideology. The topic is interesting, the writer knows the field, and the pitch still gives an editor nothing to say yes to. This guide covers what CapX publishes, how its editors assess a pitch, what happens between acceptance and publication, and how the site compares with other outlets carrying market-liberal commentary.

2. What CapX publishes and who gets commissioned

CapX publishes commentary rather than research reports: opinion and analysis on tax, regulation, housing, energy, trade, technology, welfare, and public spending. The editorial identity sits under the banner of popular capitalism, meaning markets defended for what they deliver to ordinary households rather than as an abstraction. A typical piece takes one policy question, makes one argument, and supports it with two or three pieces of evidence.

The contributor list mixes policy researchers, economists, academics, think-tank staff, journalists, and specialists from outside politics who can explain how a rule works in practice. Editors commission most of this material, and they also read unsolicited pitches sent through the contact details on the site.

What this means for a prospective contributor:

• If your argument needs three charts and 4,000 words, it belongs in a report. Pitch CapX a summary op-ed built on the report's headline finding, and link to the full document.
• If your expertise is narrow, connect it to household costs, tax, competition, or a live parliamentary debate. A piece on spectrum licensing becomes publishable when it explains why mobile bills stay high.
• If your topic has already run on the site in the past fortnight, find a new angle or wait. Editors remember what they commissioned last week.

Word counts shift with editorial priorities, so confirm the target with the commissioning editor rather than working from an old brief. The working range across UK comment outlets of this size sits between 600 and 900 words, and CapX pieces generally fit that pattern.

3. How to write a pitch that gets a reply

The pitch is the decision point. Treat it as a 150-word version of the argument, not a description of the subject.

A structure that works:

1. Subject line. Name the topic and the claim. "Pitch: Scotland's rent controls are shrinking supply" tells an editor more than "Pitch idea".
2. First sentence. State the argument as a claim someone could disagree with. "The UK's new import controls will raise food prices faster than the government's own impact assessment admits" beats "I would like to write about trade policy".
3. Evidence. List the two or three sources you will use, by name: ONS releases, OECD comparisons, Institute for Fiscal Studies analysis, Competition and Markets Authority rulings, Bank of England data, freedom of information responses, or a named government consultation.
4. Timing. Explain why now. A bill at committee stage, a consultation closing date, a data release, or an anniversary all give an editor a scheduling reason.
5. Credentials. One line on why you can write it, plus two links to published work.
6. Practicalities. State the word count you intend and when you can deliver. Say whether a full draft already exists.

Two cautions. Avoid attaching a 1,200-word file to a first email; offer it instead. And if you are pitching the same idea to several outlets, say so. Editors at UK comment sites read each other's output daily, and a piece that appears elsewhere after acceptance damages the relationship more than a rejection does.

4. Drafting the piece: structure, evidence, house style

Accepted pitches usually turn into pieces with the same skeleton.

• Hook. Open with a concrete fact, cost, or situation in the first two sentences. A household energy bill, a licensing delay, a price difference between two countries.
• Thesis. State the argument by the fourth sentence. Readers who want the conclusion early should not have to hunt for it.
• Evidence, twice. One data point establishes the problem. A second, drawn from a different country, period, or sector, shows the problem is caused by policy rather than circumstance.
• The strongest objection. Spend one or two sentences on the best counter-argument. Ignoring it invites the reader to supply it on the writer's behalf.
• What should change. Name the decision, the decision-maker, and the mechanism: a planning rule, a tariff line, a licence condition, a spending line.

House style points that come up repeatedly in editing: British English spellings (organise, labour, centre, programme); figures with the source linked inline rather than in footnotes; acronyms spelled out at first mention; paragraphs of two to four sentences; subheadings used only in longer pieces.

Three disclosure rules protect the writer as much as the outlet. State any funding or affiliation relevant to the topic, particularly if your employer publishes on the same question. Never round a statistic to make it cleaner; an editor who checks a number and finds it changed will spike the piece. And flag anything that could attract a defamation complaint before the draft is filed, not after, because comment outlets of this size rarely have in-house lawyers on call.

5. The editorial process and the mistakes that stall a draft

The sequence runs: pitch, decision, commission with a brief and deadline, draft, structural edit, line edit, fact-check, publication. News-pegged pieces move faster than evergreen ones, sometimes within a day or two. Silence after a week usually means no, and one short follow-up that adds new information is reasonable.

Where drafts go wrong after acceptance:

When an editor cuts your central example, reply with a replacement in the same message. Negotiation over a 700-word piece costs more than it returns.

6. How CapX compares with other market-liberal outlets

Matching outlet to writer matters more than matching outlet to topic. A PhD student with a working paper and three weeks of lead time should start with a think-tank blog, where the editor expects citations and a slower publication schedule. A former special adviser who can produce 700 words the morning after a budget should pitch CapX, where speed carries weight. Writers outside the UK can publish here when the argument draws a lesson British readers can apply, which means a piece on EU procurement rules needs a UK comparison to earn its place.

7. FAQ

Q1. Do I need to be a professional journalist to write for CapX?

No. Editors commission researchers, academics, and policy staff alongside journalists. What decides the outcome is whether the argument is supported and whether the writer can deliver clean copy on deadline. A first-time writer with a well-sourced case on a live debate has a reasonable chance.

Q2. How long should a CapX article be?

Most pieces run between 600 and 900 words. Confirm the number with the commissioning editor, since it varies by slot. If your material runs to 2,000 words, pitch the shorter argument and offer the extended version to a think-tank outlet that publishes longer analysis.

Q3. Can writers outside the UK pitch?

Yes, when the argument connects to British policy or draws a comparison a UK reader can use. Pieces on EU regulation, US technology rules, or Australian housing supply work if they end with a lesson for the UK. A pitch with no UK connection will usually be redirected elsewhere.

Q4. What happens if I do not hear back?

Wait about a week, then send one short follow-up that adds something concrete: a new data release, a committee hearing date, a changed number. If there is still no reply, take the piece elsewhere. Simultaneous pitching is normal practice, provided you tell each editor.

8. Conclusion

CapX submissions reward a specific kind of writer: someone with one clear argument, named sources, and a draft that fits a short slot. The pitch carries the decision, so write it before the piece and test whether the claim could survive a hostile reply. Match the outlet to your material rather than the reverse, and check the current submission details on the site before sending, since editorial briefs change with the news cycle. Editors at short-format outlets work to daily deadlines, so a pitch arriving on the morning of a data release competes with fewer rivals than one sent on a quiet Friday afternoon.