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Trans fatty acids arise as a result of hydrogenation processes in margarine manufacture, and in nature in the rumen of ruminant animals. Concern that high intake of trans fatty acids may increase the risk of coronary heart disease has been strengthened by recent studies. Further, there is evidence that trans fatty acids may adversely affect foetal and neonatal growth and development. Therefore, a reduced intake of trans fatty acids seems prudent. Certain foods, particularly stick margarines, shortenings and hydrogenated frying fats, contain large amounts of trans fatty acids, and are the main reason for the rather high intake of trans fatty acids in the USA and northern European countries, including Denmark. Therefore, the National Food Agency is presently working on a legal provision to reduce the level of trans fatty acids in these products.

The purpose of this study is to find out the effect of consumption tax on savings behavior especially on the people who are close to their retirement.

The authors analyze the response in spending and retirement saving using a difference-in-differences regression methodology. The authors use the year since the Public Provident Fund (PPF) enrollment date for each individual as a random assignment to identify the service tax policy's causal impact. Therefore, this variable is a continuous variable defined as an individual's age until the end of the restrictions when people can withdraw money from their retirement savings account PPF without any penalty. The treatment variable is the service tax shock (increase in service tax) that happened effective 1st April 2015.

The authors find a significant effect of a change in the service tax rate on individuals' spending and PPF saving behavior. On average, individuals lower their consumption by about 14% and increase their PPF savings by 16% in response to the increase in the service tax rate. The authors find substantial heterogeneity in effect across different types of individuals. The effect is more pronounced for people closer to their retirement and needy people (defined as individuals with low traditional savings account balances).

The authors studied the effect of consumption tax on one category of savings (PPF) only. There are other savings instruments available in India. The data for those were not available to us.

This paper not only throws light on the consumption and savings behaviour of the individuals, but will also help the policy maker for framing appropriate fiscal policy.

Using a unique and proprietary data from a large bank in India, the authors analyze the effect of a tax policy change on households' consumption and retirement savings behavior. The authors find that households reduce their consumption by 14% and increase their voluntary retirement savings (Public Provident Fund aka PPF) by 16% in response to an increase in the service tax policy. Individuals close to their retirement age (55 years of age and above) and without any withdrawal restrictions from their PPF account tend to reduce their expenditures more and save more. Individuals with financial constraints and withdrawal restrictions do not reduce their expenditures significantly. To the best of the authors’ knowledge no study was done on this.