This Paper develops a model of economic growth and activity locating endogenously on a 3-dimensional featureless global geography. The same economic forces influence simultaneously growth, convergence, and spatial agglomeration and clustering. Economic activity is not concentrated on discrete...

Innovative ideas are novel combinations of productive resources potentially addressing an economic need (Schumpeter, 1926). Even promising ideas can be unprofitable if the proposed combination fails on at least one dimension, e.g., it is technically unfeasible or does not respond to a genuine...