I want to know the answer to the following question:
Whish Hellinistic historian focused primarely on the economic system?
All the background I'm provided with is that "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.". Is that enough to answer the question?