20. did An unexpected increase in the price level that temporarily lowers real wages and induces more employment and output in an economy, occurs in A nominal-supply theory. B stagflation G misperceptions theory. sticky-wage theory18 (MILEWhen the actual change in the price level differs from its expected change, which of the following can explain why firms might change their production? A. both many costs and mistaking a price lovol change for a change in relative prices B manu costs but not mistaking a price level change for a change in relative prices mistaking a price level change for a change in relative price but not menu costs D neither manu costs nor mistaking a price level change for a change in relative pricesRefer to the Figure, Which of the long-run aggregate-supply curves is consistent with a short-run economic expansion? CA LAAS LAAS LRAS; D Both LRAS, and LEAS