Baseline data where business 'as usual' will be conducted and no price increases will be implemented on SSBs.

In the general tax condition investigators will introduce a 3 cent/ounce tax on the five SSB flavors the café offers. An example of this sign would be 'Pepsi, $2.29, includes 60 cent sugary drink surcharge.'

In the Pre-K tax condition investigators will institute a 3 cent/ounce tax but will label the tax as proceeds going to Pre-K education. An example of this sign is, "Pepsi, $2.29, includes a 60 cent sugary drink surcharge to fund Pre-K education."

In the Childhood Healthy Eating tax condition investigators will institute a 3 cent/ounce tax but will label the tax as proceeds going to Pre-K education. An example of this sign is, "Pepsi, $2.29, includes a 60 cent sugary drink surcharge to fund Childhood Healthy Eating education."

Obesity

Diabetes

For each of the 3 experimental conditions, investigators will increase the price of sugar-sweetened beverages by 3 cents per ounce. This price increase will be reflected in the price tag and described as a surcharge. In two of the arms (Pre-K and Childhood Healthy Eating), the beneficiary of the surcharge will be named.

Simulated tax via 3 cent per ounce price increase

Do Taxes Reduce the Purchasing of Soda?

Using the Universal Product Code (UPC) obtained in sales data, we will sum the total number of sugar sweetened beverages sold in each condition and can calculate this as a share of total beverages sold.

Using the UPCs and nutrition labels, we will calculate the average number of calories purchased that come from beverages.

Using the Universal Product Code (UPC) obtained in sales data, we will sum the total number of unsweetened beverages sold in each condition and can calculate this as a share of total beverages sold.

We will examine any changes in the types of beverages purchased during each condition, using the Universal Product Code (UPC) for bottled beverages. For example, if sugar-sweetened beverages sales decrease, do purchases of water increase?

Leslie John

Principal Investigator

Harvard University

Dental Caries

concentration to be isosweet with 4.7% sucrose

food - novel sweetener

food vehicle blank

food - sweetener, positive control

non-cariogenic sweetener at concentration isosweet with 4.7% sucrose

fructose/kariess

Do Taxes Reduce the Purchasing of Soda?

Effect of a Novel Sweetener on the pH of Dental Plaque.

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