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In the U.S., at the end of WWII, there was fear that with the winding down of war production the economy might revert to the stagnation of the Great Depression. In fact, with all the returning soldiers and sailors looking for work, there was inflation and a recession in 1946-47. However, the post-war economy soon roared back to life. Part of it was the long pent up desires of the American public, part of it was the effects of the GI Bill (Servicemen's Readjustment Act of 1944) easing the soldiers' transition back into civilian life.
In the post war years, along with a baby boom, came a housing boom thanks to the low cost mortgages provided by the GI Bill. There was also a change in building methods during this period, with much more prefabrication and cookie-cutter design, as any visit to a WWII era suburb will attest.
These images, from Vintage Everyday's 30 Beautiful American Kitchens From the 1940s, show how kitchens for the new homes were imagined and advertised. There are more at the link.