Corruption is lower in governments where a greater share of parliamentarians are women, say scientists - including those of Indian origin - who analysed data from over 125 countries.
The study, published in the Journal of Economic Behavior and Organisation, also found that women's representation in local politics is important too - the likelihood of having to bribe is lower in regions with a greater representation of women in local-level politics in Europe.
"This research underscores the importance of women empowerment, their presence in leadership roles and their representation in government, said Sudipta Sarangi, an economics professor at Virginia Tech in the US.
"This is especially important in light of the fact that women remain under represented in politics in most countries," said Sarangi.
The researchers, including Chandan Jha of Le Moyne College in the US, speculate that women policymakers are able to have an impact on corruption because they choose different policies from men.
An extensive body of prior research shows that women politicians choose policies that are more closely related to the welfare of women, children, and family.
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The relationship is robust to the inclusion of a number of other control variables including economic, cultural, and institutional factors.
The study also uses a statistical technique, known as the Instrumental Variable analysis, to account for the confounding factors and to establish causality in the relationship.
After all it is possible that it is corruption that drives women's participation in politics and not the other way around.
Researchers maintain that while the gender-corruption relationship has been studied before, the previous studies suffered from the critique that the relationship between women's representation in government and corruption was not shown to be causal.
The research is the most comprehensive study on this topic and looks at the implications of the presence of women in other occupations as including the shares of women in the labour force, clerical positions, and decision making positions such as the CEOs and other managerial positions.
The study finds that women's presence in these occupations is not significantly associated with corruption, suggesting that it is the policymaking role through which women are able to have an impact on corruption.
Sometimes it is believed that the relationship between gender and corruption may disappear as women gain similarity in social status.
This is presumably because as the status of women improves, they get access to the networks of corruption and at the same time learn the know-how of engaging in corrupt activities.
The results of this study, however, indicate otherwise: the relationship between women's representation in parliament and corruption is stronger for countries where women enjoy a greater equality of status.