"Part of the wage increase is understandable," said Jens Ulbrich, chief economist at Germany's Bundesbank.
Yet the rapid wage growth underway now will hamper the European Central Bank's efforts to get inflation back to its 2% target, and possibly force it to keep interest rates high for longer.
"We are taking a first step, but much more is needed to reverse the years of lopsided wage growth," Kager added.
"The inflation trend, food and especially energy prices are tearing deep holes in our workers' budgets," ver.di Chairman Frank Werneke said.
"The high levels of wage growth projected for 2023 and 2024 can be expected to make wages an increasingly dominant driver of underlying inflation in the euro area," Lane says.