When did the socio-economic prerequisites for a radical change in the course of the Great Patriotic War take shape?

By the beginning of 1943, a radical turning point had come in the course of the war. The front was finally stabilized, the strategic enterprises exported at the beginning of the war were not in danger, they worked at full power, even beyond their strength. People wanted victory, the country’s economy worked to defeat fascism. The German economy, on the contrary, began to deplete and could not withstand such loads, although the Germans resisted for another two whole years. And after the Battle of Kursk it became finally clear that the end of Nazi Germany was near.