As far as I know, the globalization is about the removal of isolated markets, making all the world a pool of workforce and goods. I fail to see how Carthage is relevant to this? There was no "opening of borders" beyond the standard conquer-and-exploit fare that has been seen through all of history, and there was no increase in communication, except a relatively small increase in naval capacity.

However, in the economical aspect of today, we see that certain populations migrate from "low-cost" countries into "high-cost" countries and take the low-end jobs. An example from my own country is the Polish people who used to come to Norway to pick strawberries every summer. The strawberries in Poland have tended to rot in the fields as those who choose the work go out of the country. Often these even had qualifications like doctors, but the work pays better than their regular work at home. Now, Lithuanians have taken their place, as they are willing to work for less than the Polish.

Another example would be the outsourcing in the IT industry, moving certain functions to Romania, India, the Philippines or other countries where the expertise is cheaper. Location of the work is less important in these functions, and today's quick communications make a somewhat global market possible, discounting culture clash.

Now, if you'll excuse my comparison, very simplified and taking Europe as the model, you could take a look at the low-cost labor through the times.
Current time: People from poor countries which have recently opened the borders to richer countries
Recent past: Wage slaves working most of their life to pay off debt
Industrialism: Factory workers working for company owners for subsistence
Colonialism: Slaves
Feudalism: Peasants working for the aristocracy for subsistence
Agricultural revolution: Non-land-owners working for peasants for subsistence
Very roughly, dark age and earlier: Slaves

Perhaps you could take such a perspective, seeing the effects increased communication and transport capacity has had on the models of production throughout the times. I realize that it's part of human impacts, however. Not to mention that my knowledge lies primarily in computers, so I just might not know what I'm talking about.