Final answer:
The relationship between annual real per-capita GDP and corruption across countries is typically negative, indicating that higher corruption is associated with lower economic performance.
Step-by-step explanation:
The relationship between annual real per-capita GDP and corruption across countries has typically been found to be negative. This implies that as corruption levels increase, there is generally a decrease in the economic performance of a country, reflected in its GDP per capita. It suggests that countries with higher levels of corruption tend to have poorer economic outcomes, which can be interpreted through lower growth in real per capita GDP. The negative correlation between these two variables indicates that as one variable increases, the other decreases, and vice versa, as documented in various datasets and reports on global economic performance and corruption indices.