The Paradox of Thrift posits that while personal saving is advantageous, a widespread increase in savings, particularly during economic downturns, can hinder overall economic expansion. This seemingly contradictory outcome arises because:
Hence, although increased savings appear beneficial at the individual level, during periods of economic weakness, they can diminish overall economic activity, illustrating the paradox. The accurate assertion is: During recessions, elevated savings can lead to a reduction in national income.

In an economy, exclusion of _______ may lead to under estimation of the value of Gross Domestic Product (GDP).