How did the increase of trade on the Italian Peninsula lead to the Renaissance? Responses A weakened economy fueled revolutionary ideas in Europe. A weakened economy fueled revolutionary ideas in Europe. The growth of businesses led to an increased belief in traditional thought. The growth of businesses led to an increased belief in traditional thought. Increased wealth allowed the wealthy to invest in the arts. Increased wealth allowed the wealthy to invest in the arts. Increased interaction with cultures outside of Europe unified Italian culture.