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Maintaining Market Share Growth: Optimal Budget Allocation to Loyalty and Sales Promotion Programs

Maintaining Market Share Growth: Optimal Budget Allocation to Loyalty and Sales Promotion Programs. 33th INFROMS Marketing Science Conference. Hsiu-Yuan Tsao Associate Professor Department of Business Administration Tamkang University TAIWAN. ABSTRACT.

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Maintaining Market Share Growth: Optimal Budget Allocation to Loyalty and Sales Promotion Programs

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  1. Maintaining Market Share Growth: Optimal Budget Allocation to Loyalty and Sales Promotion Programs 33th INFROMS Marketing Science Conference Hsiu-Yuan Tsao Associate Professor Department of Business Administration Tamkang University TAIWAN

  2. ABSTRACT • This study employs a first-order Markov-type market share model to examine the differential unit cost of marginal effect and the spendingfor promotion and loyalty programs on market share. • Sensitivity analysis with a spreadsheet is used to help determine optimal budget allocations for both programs over a multi-period during which the dual aim is to keep the overall budget to a minimum and to maintain growth in market share. • We apply this approach to data from a 2009 consumer panel provided by Taylor Nelson Sofres (TNS) Global Taiwan for the adult milk product category, based on the given initial size of market share and loyalty effect and on an estimation of the promotion effect, using empirical data concerning the outlay budgeted for these two programs.

  3. Loyalty Effect the proportion of customers whose choice of brand on the next occasion is simply to purchase the same as before as a result of their satisfaction Promotion Effect Markov Market Share Model the proportion of customers whose choice of purchase on the next occasion, whether the same brand or not, is affected by marketing mix activities The brand share of the th brand at time is given by

  4. Estimation • Effect of Loyalty Program A share of the category requirement (SCR) is commonly used by marketing practitioners to represent the loyalty statistic, namely loyalty, in the marketing literature (Bhattacharya et al., 1993;Ehrenberg et al., 2004), • Effect of Promotion Program the least squares method being used to estimate the from these time series. the promotion effect for each brand at period is solved as follows:

  5. The Objective Function The objective for the focal brand is to develop a budget allocation plan for loyalty and promotion, while minimizing the overall budget and maintaining market growth rate ( ). (1) represent the unit cost (marginal cost), to raise the level of the effect of promotion and loyalty programming (2) we propose a variable and assume that given the same level of marginal effect, the spending on the promotion program is times that spent on the loyalty program (Blattberg & Deighton 1996). (3) the market share growth rate

  6. Method & Result 1.The data came from TNS global Taiwan and covered the 12 months of 2009. 2. Excel Solver for nonlinear programming solution and sensitivity analysis is used to seek for the solution. 3. the Objection Function : MIN (BUDGET) to MAINTAIN Market Share Growth Rate and 4. Decision Variable is Budget Growth Rate for Loyalty Program manipulate the growth rate for the loyalty program and solve the optimization model in a dual direction, increasing and decreasing the growth rate by 0.01, plugging in the initial market share and initial loyalty, and seeking an MIN(Total Budget)that maintains the market share growth rate =1.01

  7. Conclusion • The primary contribution of this study has been to provide the platform that uses the Markov market share model and the method of sensitivity analysis with spreadsheet to conduct an analysis that illustrates the dynamic interaction between multi-period brand shares and loyalty and promotion effects. • A second contribution has been that by manipulating the parameter of the unit cost of marginal effect for promotion and loyalty programs (letting range from 5 to 1), • we found that the greater the value of m , the greater the total budget required to reach the target market share.

  8. Conclusion (Cont.) • Third, when the differential unit cost of the marginal effect for promotion and loyalty programs is decreased to 4, please refer to Table 3, for=4. The model and methodology proposed in our study indicate this as the turning point at which firms should switch budget spending away from loyalty and focus on the promotion program alone. • This interesting result questions the rule that “the cost and effect to acquire a new customer is larger than that to retain a customer.” - in effect calling for halting budget allocation to the loyalty program, instead of the favoured convention to increase it.

  9. Future Research • We might adopt the marginal diminishing return for the unit cost and marginal effect for promotion and loyalty program instead oflinear relationship • We might try use the platform to examine and seek to the optimal budget alloication for maximizing the CLV(Customer Lifetime Value) from the Macro perspective instead of micro (individual) perspective as previous did.

  10. Appreciate for your kind attention And Q & A

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