Final answer:
The findings of Transparency International's Corruption Perception Index (CPI) indicate that higher levels of bribery have been found in low-income nations.
Step-by-step explanation:
The findings of Transparency International's Corruption Perception Index (CPI) indicate that higher levels of bribery have been found in low-income nations. This is supported by the fact that low-income countries often face economic and political challenges, such as command economies, corruption, and political instability. The lack of a legal framework for economic growth and the presence of civil and ethnic wars also contribute to higher levels of corruption.