What's the adjective for econophysics? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs economize and economise which may be used as adjectives within certain contexts.
“A young entrepreneur is expected to be quite economical with their spending.”
“I would rather see these plants sold outright at a price that is economical to the buyer, than to be carried for years upon a subsidized basis by the Government.”
“Square in plan, this unit is well proportioned, plain and economical in design.”
economy
Cheap to run; using minimal resources; representing good value for money.