Fifty years ago, optimizing the marketing mix was relatively easy. The media options for most companies were typically limited to national and local magazines and newspapers, and national television networks and maybe some local radio and large industry trade shows. Today the channel options are far more complex; making data and a marketing mix model a necessity.

ll of these additional marketing channels such as social networks, online display, virtual events, email, content, video, and mobile reinforce and amplify the importance of being able to ascertain the effectiveness and efficiency of our marketing channel investments; hence the increased emphasis on marketing mix modeling and optimization.

What is a Marketing Mix Model?

Marketing mix models use statistical analysis such as multivariate regressions on sales and marketing time series data to estimate and forecast the impact of various Marketing tactics on sales.

Regression is the workhorse for mix models. Regression is based on a number of inputs (or independent variables) and how these relate to an outcome (or dependent variable) such as sales or profits or both. Organizations use Marketing Mix Models to quantify the sales impact of various Marketing efforts and determine effectiveness and ROI for each Marketing activity. Most organizations set their models up to evaluate their various marketing channels.

Once you have the statistics to create the model you can use these equations to figure out how to optimize your mix, this is known as Marketing Mix Optimization. You will want your model to account for direct as well as indirect effects and take things outside of your contract (such as the time of year, interest rates, exchange rates, gas prices, elections, competition, etc.) into account.

Developing a Marketing mix optimization model requires good data and strong analytical skills. You may find it prudent to partner with your Finance organization to co-author the model to as a well to generate buy-in from the Sales and leadership team.

When Does it Make Sense to Use a Marketing Mix Model?

Marketing mix models (MMM) helps you answers such questions as:

• What happens if the economy changes by X?
• What happens if we reduce/increase the Marketing budget by Y?
• What happens if the competition adds Z to their media spend or reduces their price?
• What if we have to hold our touch points to the current mix, what is the optimal mix of these?
• What is the optimal mix for our current budget?

However, the Marketing mix model needs to support your overall organizational outcomes, Marketing objectives, and metrics and performance targets. Optimizing a mix that will not enable you to achieve your outcomes and objectives may make your more efficient but will not make you more effective. If you are not meeting your performance targets or industry benchmarks, you may want to revisit your execution before you adjust your mix and spend.

You’re ready to use data to build your mix model.

Follow these steps when you’re ready to start developing your  mix model:

1. Determine what data is going to go into your model and build a prototype- common types of data include: Monthly/Weekly sales data with causal factors, competitive information, monthly/weekly marketing spend by touch point (channel, promotion, etc), customer demographic and other data, industry data, distribution data, product category data, economic and other data that impacts customer buying decisions.
2. Test the predictive ability of the model on a hold out sample
3. Refit using all the data and predict the future- remember to account for indirect effects and things out of your control in the model
4. Compare actual to forecast sale performance and determine incremental revenue
5. Apply financial data and determine ROI
6. Model the influence of individual factors
7. Simulate the impact of different marketing activities
8. Develop and deploy the optimal marketing mix

You will want to refresh your models quarterly and rebuild them at least once a year. Things such as the your data quality, the breath of internal and external data, the granularity of your data, the accuracy of your historical marketing data, the robustness of your statistical functionality, and the technical architecture to support the model construction all impact the quality of your model.

An attribution model will help complement your mix model.

Building any model may be one of the tasks worth outsourcing to the experts if you don’t have the analytical skills to develop your model or access to internal resources that can help (such as Finance).

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