Consumption of salt rich products: impact of the UK reduced salt campaign
This paper uses a leading UK supermarket’s loyalty card database to assess the effectiveness and impact of the 2004 UK reduced salt campaign. We present an econometric analysis of purchase data to assess the effectiveness of the Food Standard Agency’s (FSA) ‘reduced salt campaign’. We adopt a general approach to determining structural breaks in the time series of purchase data, using unit root tests whereby structural breaks are endogenously determined from the data. We find only limited evidence supporting the effectiveness of the FSA’s reduced salt campaign. Our results support existing findings in the literature that have used alternative methodologies to examine the impact of information campaigns on consumer choice of products with high salt content.
KeywordsStructural breaks Salt consumption Low salt campaign effects
JEL ClassificationQ12 Q31 I12
Research funded by the UK Food Standards Agency (FSA Project Code: D03008). We would also like to acknowledge help received from Andrew Fearne in obtaining the dataset used in this paper.
- Hansen, B. E. (1997). Approximate asymptotic P values for structural-change tests. Journal of Business and Economic Statistics, 15(1), 60–67.Google Scholar
- Lee, J., & Strazicich, M. (2004). Minimum LM unit root test with one structural break. Working Papers 04–17, Department of Economics, Appalachian State University.Google Scholar
- World Health Organization. Global Status Report on Non-Communicable Diseases, 2014. http://apps.who.int/iris/bitstream/handle/10665/148114/9789241564854_eng.
- Zivot, E., & Andrews, D. (1992). Further evidence of great crash, the oil price shock and unit root hypothesis. Journal of Business and Economic Statistics,10, 251–270.Google Scholar