Last week, we reported how Ericsson, despite some solid second quarter results, was punished by investors for one particular figure, a fall in gross margin from 43.4% a year earlier to 42.1%. By contrast Nokia, which also reported a fall in gross margin in its Q2 announcement a week later, from 40.9% to 40.2%), received strong positive reaction from the markets, as it returned to growth in its key Mobile Networks business after three successive quarters of decline, and more than two years of upheaval following missteps with the original 5G base station architecture in 2019. The Mobile Networks business experienced a sales increase of 1% year-on-year, at constant currency, to €2.6bn. The growth was far lower than at the…