Read the following excerpt from a passage regarding maritime economics:
"The widespread adoption of standardized shipping containers precipitated a transformative restructuring of global trade dynamics through a distinct causal progression. The uniform dimensions of the containers eliminated the necessity for meticulous break-bulk cargo handling, a shift that directly precipitated a steep collapse in dockside labor expenditures. It was this specific drastic contraction in overall transport overhead that suddenly rendered the geographic fragmentation of industrial production financially feasible, allowing corporations to distribute manufacturing stages across disparate international jurisdictions. In turn, sustaining this heavily distributed production model required economies of scale in maritime transport, necessitating the development of unprecedentedly massive, specialized deep-water terminals. The shift of shipping traffic to these new mega-terminals ultimately doomed traditional, shallower urban port centers to severe economic obsolescence."
Based on the explicit causal relationships detailed in the excerpt, arrange the following historical developments in the exact sequence in which they triggered one another, from the earliest cause to the ultimate consequence.
- 1A sharp reduction in the financial costs associated with dockyard labor.
- 2The economic feasibility of dispersing manufacturing processes across multiple international locations.
- 3The construction of highly specialized, massive deep-water shipping terminals.
- 4The severe economic decline of traditional, shallower urban port facilities.