<human>: Does "Moses Hadas portrayed an optimistic picture of synthesis of culture from the perspective of the 1950s, while Frank William Walbank in the 1960s and 1970s had a materialistic approach to the Hellenistic period, focusing mainly on class relations." contain the correct answer to "Whish Hellinistic historian focused primarely on the economic system?"
OPTIONS:
- yes
- no
<bot>: no