The money she collected from the lottery ultimately represent a call option on someone's future labor. After the lottery that call option has been handed to a s

The money she collected from the lottery ultimately represent a call option on someone's future labor. After the lottery that call option has been handed to a single individual who may never make that call in her lifetime. The effect is similar to the coal mining town's company store where you can only buy what they sell at the price they set. The effect is to concentrate economic activity in specific sectors where banks are willing to lend which means the economy is less flexible overall. An economy with $1B of debt and $1B in savings spread over 10,000 people is going to be more diverse and resilient than 9,999 people who have $1B in debt and one person with $1B in savings invested in housing and car loans. The best outcome would be if she invested in new equity in a company that created a positive ROI in excess of what the lottery ticket buyers would have produced. Anything else is a net negative.