Our evidence suggests that Spanish public firms adjust slowly toward their capital structure target, with the typical firm closing approximately one-fifth of the gap between its current and target debt ratios each year. This finding is in contrast with previous evidence; however, we employ econometric techniques specially designed for highly persistent dependent variables, like market debt ratios. Moreover, our evidence does not seem to indicate that macroeconomic conditions, at least under the conditions experienced by the Spanish economy during our sample period, affect the speed of adjustment. If anything, our results are consistent with faster adjustments during economic states in which the distance between the current and target leverage is the greatest.

Key words: market debt ratio, dynamic trade-off, target leverage, speed of adjustment, macroeconomics, distance from target. JEL classification: G32, C33, E30.