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Dr. B oris V aillant - Quantitative Consulting


We offer quantitative consulting for business in the following areas

[Strategy and Planning] [Business analytics] [Marketing and Pricing] [Customer analytics] [Training]

About us

About us

[About us] Quantitative Consulting for Business

In today's business life, quantitative methods are needed everywhere. The ability not only to efficiently organize but also to meaningfully interpret your data, and act upon it, is an important competitive advantage in the marketplace. [more online]

Download our company presentation: [pdf presentation]

New (technical) presentation

Adaptive discrete choice design

Adaptive discrete choice design - presentation held at UseR! 2008

We present a concept for truly adaptive discrete choice designs. Based on the Bayesian paradigm, our algorithm uses sequential Monte Carlo methods to update the posterior probability after each new answer and generate new product comparisons based on a variety of possible target measures. We provide results comparing different adaptive and fixed-design strategies from a simulation study performed in R. Our algorithm outperforms classical adaptive methods based on utility balance. Our method is consistently based on discrete choice theory and should therefore also lead to more valid results. [pdf presentation - long! (5MB)]

Short articles

Bundling and Upselling

[Marketing and Pricing] Tools for Bundling and Upselling

Bundles are everywhere. While one is usually inclined to think of the more notorious examples of software bundles or copiers and paper, essentially every product is a bundle of features and services. The art of bundling consists in knowing which parts to sell together and which to sell separately. Be careful! Bundling projects are just as common as unbundling (aka "add-on pricing") projects. [pdf presentation]

Calculating tariff scenarios

[Marketing and Pricing] Calculating tariff scenarios

Many industries (Telcos, Banks, Utilities) work with two-part tariffs, consisting of a fixed access fee and a usage component. While this allows to specifically target different customer segments (think of prepaid tariffs vs. flat fees in mobile telephony), it also makes the assessment of the effects of tariff changes very complex. [pdf presentation]

Internal benchmarking systems

[Business analytics] Internal benchmarking systems

The usefulness of transaction based benchmarking systems is often hampered by a lack of comparability. No two transactions are the same, specific conditions for the product, the client or the market seem to apply everytime you try to make a comparison. Our method consists in constructing fair reference lines taking into account all major influences. While our main examples are pricing-related the same methods can be applied for performance-, quality- or other measures. [pdf presentation]

Business plans with Bayes nets

[Strategy and Planning] Business plans with Bayes nets

Bayes nets give a systematic approach to creating business plans or to sizing markets. The methodology can not only be used when building a tool for your business plan, the graphical representation also simplifies the internal discussion of its structure and the hypotheses involved. [pdf presentation]


[Strategy and planning] Setting up new reports

Good reports are an essential ingredient for any efficient management organization. Many good frontends for datawarehouses exist, permitting flexible setup and distribution of reports. However, the identification of those areas needing special attention, the right choice of indicators to track or the definition of warning thresholds require massive analytical input. Read our [pdf presentation] to learn more.

Customer analytics

[Customer analytics] Customer analytics: Fitness club example

Analyze your customers' behavior to tailor your offer to their needs. In all those subscibtion type business situations, where your customers are known to you, a wealth of data can be used e.g. to predict and avoid churn. Typical examples are telecommunications, insurances or even fitness clubs. Have a look at our example here: [pdf presentation]

Pricing propaganda

[Marketing and Pricing] Some pricing propaganda

Pricing of the products in a company ranks among the tasks with the strongest influence on profitability. If you are operating on a 10% margin, increasing your prices by 5% leads to a profit increase of 50%! Let's look at some examples. [more online]

The basics of pricing

[Marketing and Pricing] The basics of pricing

Pricing of the products in a company ranks among the tasks with the strongest influence on profitability. If you are operating on a 10% margin, increasing your prices by 5% leads to a profit increase of 50%! That is, if your customers are not running away. [more online]


[Business analytics] Forecasting

Whenever planning future activities of your business, you will almost immediately be confronted with the problem of predicting the development of your major business parameters. [more online]

Marketing effects

[Marketing and Pricing] Measuring marketing effects

So you have decided to do something about that dwindling favorite product of yours. You have decreased the price to spurn its sales, or maybe you have started a nationwide ad-campaign. After a while you are asked to report on the success of that activity. [more online]


[Training] Dos and Don'ts in Excel

There's no denying it. As much as quantitative consultants would wish that dedicated statistics tools like R, Splus, SAS or business intelligence tools like BO and Cognos played a more prominent role, the program that is virtually ubiquitous when it comes to analyzing business data is Excel. [more online]

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