Economic indicators are economic quantities, expressed in numerical value, that have as main purpose to measure the levels of development of countries, regions, companies, etc. (allowing, of course, comparisons).
It should be noted that, in the case of indicators relating to countries, regions or groups of persons, a broad range of economic indicators also include other social or demographic indicators.
To put it simply... Obama
The difference is that the older union tend to pursue practical things such as fair wages, number of holidays, and working hours.
The newer union on the other hand, tend to focus on something that related to social justice, such as fair treatment between each races, same opportunity to rise the ladder, etc.