Excessive risk-taking in a favourable macroeconomic environment In the years leading up to the GFC, economic conditions in the United States and other countries were favourable.A large share of such risky borrowing was done by investors seeking to make short-term profits by 'flipping' houses and by 'subprime' borrowers (who have higher default risks, mainly because their income and wealth are relatively low and/or they have missed loan repayments in the past).Economic growth was strong and stable, and rates of inflation, unemployment and interest were relatively low.