Price Controls 110 · On-demand course
A recorded course from MCC Economics on CPI-X, one of the most widely used pricing mechanisms in regulated infrastructure. It explains where CPI-X came from, how the X factor is set and adjusted, and how it works in practice in the United Kingdom, Australia and Ireland.
Price Controls 110 is delivered by practitioners who work on price controls and financial modelling for regulators, governments and utilities.
Course lead
Director, MCC Economics
PJ has worked on price controls from the regulator's side and for regulated companies, including RIIO-2 work with Ofgem and the Utility Regulator for Northern Ireland.
I heartily recommend PJ to anyone seeking input on the financial parameters that underpin different regulatory models.
Price Controls 110 is a recorded course on CPI-X regulation, where a regulated company's prices or revenue may rise each year by Consumer Prices Index inflation minus an efficiency factor, X. It explains where CPI-X came from, how regulators set and adjust X, and how it drives efficiency and investment, with examples from the United Kingdom, Australia and Ireland.
You will be able to explain how a CPI-X price control works and what the X factor is doing. The course is built around three outcomes.
The lecture traces CPI-X from its origins to how regulators use it today.
These are the terms the course uses most, in plain English.
| Term | Meaning |
|---|---|
| Consumer Prices Index | The official measure of how the prices of a typical basket of household goods and services change over time. |
| CPI-X | A price control that lets prices or revenue rise each year by Consumer Prices Index inflation minus an efficiency factor, X. |
| X factor | The yearly adjustment set by the regulator to pass expected efficiency gains on to customers. It can be negative where large investment is needed. |
| RPI-X | The original form of the mechanism, which used the Retail Prices Index as its measure of inflation. |
| Incentive regulation | An approach that lets companies keep savings they make beyond the regulator's targets for a period, rewarding efficiency. |
| Price control period | The fixed span, often five years, for which the regulator sets a company's allowed prices or revenue. |
It suits professionals who work with incentive-based regulation, investment planning or performance targets.
Price Controls 110 follows Price Controls 101 and leads into the courses on building blocks, the cost of capital, incentives and case studies from Oman.
Browse every title on the MCC Economics courses page.
MCC Economics advises regulators, government bodies and utilities on price controls in the United Kingdom and the Gulf. The firm was founded in London in 2017. Its regulatory economics work covers energy, water, aviation and infrastructure. You can read the team's background on the people page.
MCC Economics has helped us better understand the most important issues for our stakeholders, including: charges, shareholder returns, debt payments and inflation impacts.
See the instructor profiles near the top of this page for the current teaching team and their experience.
No. Price Controls 110 is recorded course material only, so there is no meeting to attend. You get full access to the materials once you register.
A lecture video, annotated slides, a knowledge quiz and a full transcript.
The course draws on CPI-X in practice in the United Kingdom, Australia and Ireland, across the water and energy industries.
It helps. Price Controls 110 builds on foundational knowledge of price controls. If price caps and revenue caps are new to you, start with Price Controls 101: Price and Revenue Caps.
Checkout is handled by Eventbrite, where MCC Economics and Finance is the organiser. The button on this page takes you straight to the course listing.
Contact MCC Economics through the consultation page to discuss access for a team or training tailored to your organisation.
Page last reviewed October 2026.
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