A Thoughtful New Approach To Marketing Mix Models Faster, Cost-Effective Marketing Optimization Marketing Mix Modeling (MMM) is the most efficient, affordable marketing attribution and optimization tool available. The Leavened Iterative Hypothesis Testing Engine (LIHTE) is more than a traditional MMM. LIHTE is a high-velocity MMM that enables fast, objective, exhaustive testing of marketing hypotheses. Leavened democratizes MMM so the decision-makers and marketing experts can directly engage with the process. Start making decisions within days, not months, with this innovation in MMM accessibility. Why test a few models when we can test millions of models within a few hours? Through the power of cloud computing and iterative hypothesis testing, Leavened removes modeling bias and empowers marketers and brand leads to test everything. Traditional MMM Several analysts and business leads work to develop a single perspective into media.