The mobilization of human and economic resources was more significant than technological developments, as the industrial and economic superiority of the USA was the most crucial element in their final victory. The USA had been the world’s most industrialised country for decades before 1941, and had access to vast amounts of raw materials, so it did not need to rely on imports. For example, it was the world’s largest producer of petroleum, which produced approximately 800 million tonnes between 1941 to 1945. The US’s access to abundant resources led to a high level of its production capacity, which enabled the mass production of military supplies. For instance, the US produced a total of 300,000 aircraft between 1941 and 1945, which was four times larger than Japan’s aircraft production. This superiority in war production transformed the conflict into a war of attrition that Japan’s weaker industrial base could never sustain. For example, in the battle of Leyte Gulf in 1944, while the US had built a number of carriers by 1944 that it could deploy 34 aircraft carriers, Japan could only deploy four carriers with few aircraft, which resulted in Japan’s defeat, demonstrating the great impact of superiority in production capacity effect to the victory of the battle. However, some historians argue that Japan’s defeat was not only due to economic inferiority, but also to the failure to utilize the resources it did possess effectively. Japan controlled territories rich in raw materials during the early part of the war, including Malaya and the Dutch East Indies; however, the limitations to its access, such as logistical weaknesses, undermined their exploitation. Therefore, the mobilization of economic and human resources had a significant impact on the US victory, due to its superiority in industrial capacity, effective strategy, and organization. 

However, technological developments also contributed to the US victory due to its allied technological and intelligence superiority. Innovations such as aircraft carriers and radar technology played pivotal roles in shaping the course of the conflict. For example, during the Battle of Midway in June 1942, the US effectively utilized carrier-based aircraft, resulting in the sinking of four Japanese aircraft carriers. This battle not only marked a turning point in the war but also demonstrated the effectiveness of the US Navy's strategic deployment of its technological advancements. By 1944, the US Navy had built an impressive fleet of 34 aircraft carriers, compared to Japan's four, allowing the US to project power effectively across the Pacific. This demonstrates that technological advancements in naval warfare and intelligence capabilities were crucial in altering the war's dynamics, enabling the US to inflict significant losses on the Japanese fleet. The successful deployment of radar technology, with over 2,100 radar sets in place by 1944, significantly enhanced the US military's operational capabilities, enabling better detection of enemy movements and contributing to more effective strategic planning. However, some historians argue that the mobilization of human and economic resources was fundamentally more important than technological developments, as Japan possessed advanced technology early in the war, including superior fighter aircraft like the Zero and highly experienced naval pilots, yet still ultimately faced defeat. This perspective suggests that the United States' unparalleled industrial capacity, which enabled the mass production of overwhelming quantities of war materials and the ability to replace losses rapidly, was the decisive factor that Japan's technological advantages could not overcome in a prolonged war of attrition.

  In conclusion, the mobilization of human and economic resources was more significant than the technological developments in explaining the outcome of the Pacific War. The US's superiority in industrial capacity, effective strategy, and organization was decisive for its victory, rather than its technological and intelligence superiority.