<human>: Does "Although it has been argued that clock shifts correlate with decreased economic efficiency, and that in 2000 the daylight-saving effect implied an estimated one-day loss of $31 billion on US stock exchanges, the estimated numbers depend on the methodology." contain the correct answer to "Who is the economist who said there was about $1.7 billion in lost opportunity costs because of the 2007 changes?"
OPTIONS:
- yes
- no
<bot>: no