A retailer can encourage long-term employment through a policy of promoting from within the firm

Manufacturers are using all of the following methods to respond to inroads made by private labels, except:

A) focusing on a few core brands B) increasing advertising expenditures C) introducing new products and new versions of current products D) reducing prices to meet private label pricing

Traditionally economists identified four main types of economic systems. However, due to globalization it is harder to categorize the systems this narrowly. What will be more robust descriptive criteria that can be used for classification?

What will be an ideal response?