Ian Hargreaves.
Analysis that decides
Lausanne CH · 46.52°N 6.63°E
№ 00
Profile

Rigorous
analysis,
decisions
that stick. I turn ambiguous commercial questions into rigorous analysis, and rigorous analysis into decisions an organisation actually makes. A methodologist building analytics functions from scratch.

Credentials
MScApplied Quantitative Methods
MScMarketing Management
CIMChartered Marketer
GA4Advanced (CIM)
№ 01

Analysis that
changed the decision

Not dashboards for their own sake. Each is a case where the analysis produced a structural outcome the organisation committed to.

1.2CHF Million
Annual operating cost identified in a redundant processing team, using probability-chain mediation analysis to show its net effect on conversion was non-additive. The team was disbanded.
10Years KPI Inertia
Overturned: demonstrating the established metrics were lagging, not leading, then driving adoption of the true leading indicators through the C-suite.
500CHF Million +
Market opportunity sized pre-product-launch via clustering analysis, with priority segments and growth trajectories that informed go-to-market sequencing.
200% Funnel Uplift
Top-of-funnel conversion opportunity identified via a cross-validated classification model linking researcher profiles to campaign outcomes; handed to data science for production.
i

Frame

The hardest part is rarely the model. It is turning a vague, strategic question, the kind where the decision is expensive to get wrong, into one that can actually be answered. I take the messy version (“where should we be placing our bets?”) and return the specific evidence the decision turns on.

ii

Measure

Forecasting models, propensity scoring, A/B testing: chosen to answer the question, not to show their working. Each lands on a clear recommendation with its uncertainty stated, so you know not just what to do but how confident to be.

iii

Hand Over

Analysis only matters if it survives me leaving. I build the pipeline, document the methodology, and translate the work into a repeatable operating model the internal team runs independently.

№ 02

Writing

On decision quality and the gap between a correct analysis and a good decision. Published on Substack.

№ 03

A/B Test
Instrument

A Bayesian comparison of two conversion rates, the right way to ask “which campaign won?” when a higher rate might just be luck. Computed exactly, in the browser. A demonstration of method you can run on your own numbers.