Extended Data Table 2 Comparison of responses across all petition outcomes
From: Companies inadvertently fund online misinformation despite consumer backlash

- Notes: This table shows OLS regression results for each of the four treatment groups (T1, T2, T3 and T4) across all of our petition outcomes. Columns (1) to (4) refer to company-specific petitions suggesting that companies like the respondent’s top choice gift card company need to block their advertisements from appearing on misinformation websites. Columns (5) to (8) refer to platform-specific petitions suggesting that digital advertising platforms used by companies need to block advertisements from appearing on misinformation websites. In columns (1) and (5), the dependent variable is the intention to sign a petition, a binary variable that takes the value 1 when a participant indicates wanting to sign a given petition and zero otherwise (n = 4039). In columns (2) and (6), the dependent variable is a click on the petition link that takes the user to the Change.org platform to sign a petition, a binary variable that takes the value 1 when a participant clicks on the link and zero otherwise (n = 4039). In columns (3) and (7), the dependent variable is the self-reported petition signature, a binary variable that takes the value 1 when a participant reports having signed a given petition and zero otherwise (n = 4039). We record actual petition signatures in columns (4) and (8); we omit signatures for the T4 group since these petitions were accidentally deleted by Change.org (n = 3225). Since we only observe actual signatures on the treatment group level, we cannot include controls and run regressions for these outcomes. To do testing, we calculate standard errors using the standard formula for (two-sided) proportion tests. For the remaining columns, we apply robust standard errors in parentheses. No adjustments were made for multiple comparisons. P-values derived from two-sided t-tests reported below standard errors.