Some economists suggest they are, while others suggest it's the other way around: Longer expansions lead to more severe recessions. ... The most recent US business cycle has been remarkable in both its recession and expansion phases.
A business cycle represents fluctuations in the economy around full-employment output, but an economy's full-employment output, often called potential GDP, can also change. It grows over time due to population growth, growth in the economy's capital stock, and technological change.
The builder is at fault, however if there is no legal document that he has signed to say that he would complete the work and help them, then he isn’t liable.