The key is "self-investment", and the husband's pocket money is "on the spot" rather than "fixed amount"
If you write the contents roughly
It is said that if a wife (or husband) manages a household budget by herself, it often goes wrong because the way of thinking about money and the information that can be obtained are biased.
"The spread of the new coronavirus has caused enormous damage to the Japanese economy, and our old age and money anxiety are exhausted ... → Continue reading
Wikipedia related words
If there is no explanation, there is no corresponding item on Wikipedia.