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Reference table

Scaling a consumer incentive across six markets

A worked example: a 45-minute interview paid 60 euros in Germany, scaled by price level with a floor at half the home rate

Table showing a worked example of scaling a 60 euro German consumer interview incentive to the US, Japan, UK, Brazil and India with a 30 euro floor
The floor is what keeps the India amount fair: price levels alone would give 20 euros Source: Koji worked example using World Bank price level ratios, 2020

A worked example for researchers running consumer interviews in several countries. It starts from a 60 euro home rate in Germany, scales by each country's World Bank price level ratio, rounds to the nearest 5 euros and applies a floor of half the home rate. Copy the method for your own markets. In Koji you can run one study per market with its own amount.

Where this appears

What's in this reference table

MarketRatio (US = 1.0)Scaled from 60 in GermanyWith the 30 floor
Germany0.8460 euros60 euros
United States1.0070 euros70 euros
Japan0.9570 euros70 euros
United Kingdom0.8865 euros65 euros
Brazil0.4635 euros35 euros
India0.3020 euros30 euros

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<a href="https://www.koji.so/visuals/international-incentive-amounts-worked-example"><img src="https://www.koji.so/visuals/international-incentive-amounts-worked-example/international-incentive-amounts-worked-example.png" alt="Table showing a worked example of scaling a 60 euro German consumer interview incentive to the US, Japan, UK, Brazil and India with a 30 euro floor" width="1200" height="747" /></a>
<p>Source: <a href="https://www.koji.so/visuals/international-incentive-amounts-worked-example">Scaling a consumer incentive across six markets</a>, Koji</p>