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Research & publications

We publish the method we practise.

In short. Cost and Profitability Consulting works from published evidence, not proprietary mystique. Miguel Guimarães co-authored a published TDABC study on the cost per patient in a dialysis unit, lectures at several international business schools, and speaks at industry conferences. The same method taught in those rooms is the method used in client engagements.

Published research · several international business schools · Lisbon, São Paulo, Riyadh

Consultants often ask to be trusted. We prefer to be checked.

This page collects what is public and verifiable about how we work: the published research, the teaching, the talks and the workshop track record. It exists so that a sceptical CFO, a procurement team or a journal reader can trace our method back to sources that do not belong to us.

01Published research

What did the dialysis study measure?

Miguel Guimarães co-authored a published study applying time-driven activity-based costing to a dialysis unit, measuring the true cost per patient across the treatment pathway.

Here it is in full, so you can check it yourself. Ângela Felix, António Cabrita, Delfim Garrido, Miguel Guimarães and Rui Pedroso, "Inovação e Tecnologia ao Serviço da Saúde: Aplicação da Metodologia Time-Driven Activity-Based Costing à Unidade de Diálise do Centro Hospitalar do Porto", Revista O Hospital no. 13, Associação Portuguesa para o Desenvolvimento Hospitalar (APDH), 2017, page 40. Read the article on Issuu. O Hospital is the professional magazine of the APDH rather than an academic journal, so we call it what it is: published work, with our names on it, that anyone can read.

The study matters for two reasons beyond healthcare. First, it demonstrates the method in the open: capacity cost rates and time equations applied to real clinical resources, with the working shown. Second, dialysis is a stress test for costing. Chronic pathways, shared clinical capacity and regulated tariffs punish sloppy models. A method that holds up there travels well to warehouses and factories.

We apply the same discipline in commercial engagements that putting our own numbers in print demanded: defined practical capacity, explicit time equations, and results a third party could re-derive from the data.

Our method is published and can be checked. Our opinions are not, which is why we lead with the method.

02Teaching

What does the teaching involve?

Miguel lectures at several international business schools, teaching cost and profitability management to graduate students in cost and management. Teaching forces clarity. A model that cannot survive forty questions from a classroom does not deserve a boardroom.

The material taught draws on the same cases and methods documented across this site: TDABC mechanics, capacity cost rates, cost-to-serve analysis and the whale curve, illustrated with anonymised engagement data.

03Conference talks

We speak where practitioners gather, not only where consultants do.

  • Amsterdam Costing ConferenceDetails available on request.
  • LEAPDetails available on request.

Slides and, where organisers permit, recordings are available on request. We do not list a talk we cannot evidence.

04Workshops

Where has the method been taught hands-on?

We run hands-on TDABC workshops in Lisbon, São Paulo and Riyadh, in which finance teams build a working costing model during the session using CostCtrl, our modelling platform. Participants leave with a model, not a certificate of attendance.

The workshop format is deliberately the same as the consulting method: map the operating model, define practical capacity, write time equations, attribute cost, read the whale curve. What changes between a workshop and an engagement is only whose data is on the screen.

05Our methodology stance

Three positions, stated plainly so they can be argued with.

TDABC over classic ABC, for maintainability

Interview-based ABC produces good first answers and dead models. Time equations on transactional data keep a model alive at operational scale. This is why the 525,000-row logistics model and the dialysis pathway model use the same machinery.

Practical capacity over actual volume

Rates built on actual volumes punish you for quiet periods and flatter you in busy ones. Cost of capacity supplied divided by practical capacity produces stable rates and makes unused capacity a visible, manageable line.

Client-owned models over consultant-owned reports

Every engagement ends with the client's team running the model. Evidence that outlives the engagement is the only kind worth producing.

We change our minds in public when the evidence says so, and we footnote what we borrow. The intellectual debts here are mainly to Kaplan and Anderson's TDABC work and the broader activity-based costing literature; we claim application depth, not invention.

FROM RESEARCH TO PRACTICE

Published research (dialysis TDABC) Teaching (several international business schools) Workshops (Lisbon, São Paulo, Riyadh) Client engagements (models in CostCtrl) anonymised evidence returns to the classroom
One method, four rooms.
06FAQ

Fair questions.

Where can I read the dialysis study?
Through the publishing journal. It is available through the publishing journal. If you cannot access it, contact us and we will point you to the legitimate route to the text.
Is CostCtrl part of the research?
The research validates the method; CostCtrl is the tooling we built to apply that method repeatably. The studies stand on their own regardless of the software.
Can you run a workshop for our finance team?
Yes. The in-company format mirrors the public workshops in Lisbon, São Paulo and Riyadh: one day, your team, a working model built live. Ask through the contact page.
Do you publish client results as research?
Only with consent and only anonymised, as in the case studies section. We never publish client-confidential figures, and where a client has not approved a number, we do not print one.
Start here

Check us before you hire us.

Read the case studies, then bring your hardest question to a 30-minute call with a senior partner.

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Who answers
A partner, not a bot
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Proof

A distributor in New Zealand. €1.335M of cost-to-serve made visible, then halved, and 830 loss-making customers brought down to 295.

Read the case study →

Who you would be talking to

Miguel Guimarães, Founding Partner

Cost and profitability practitioner for 25+ years. Presented the Damco cost-to-serve case at Managing for Profit (Amsterdam RAI, December 2009), on the same programme as Robert S. Kaplan.

Call +351 910 313 731

Workshops20-21 Oct · Online, ZoomReserve a seat

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Most read
  1. 1Time-driven activity-based costing: ABC made simple and scalable
  2. 2Cost-to-Serve Analysis
  3. 3The Whale Curve
  4. 4TDABC vs ABC
  5. 5Make-or-Buy and Relevant Costs
  6. 6Cost-Volume-Profit (CVP) and Break-Even Analysis
  7. 7Methods & Frameworks: how we cost, defensibly
  8. 8How to calculate cost to serve, step by step
  9. 9Customer Profitability Analysis
  10. 10Capacity Costing