Dynamics and Seasonality in Quarterly Panel Data
使用西班牙季度收入数据，提出一种控制季节性的新计量方法，并分析1985-1996年收入流动性，发现年际流动较大但多发生在相邻收入组，大学学历者流动性更高，90年代低收入更持久。
This article presents an empirical analysis of the dynamics of individual earnings using Spanish quarterly earnings. I propose a new econometric methodology to control for the seasonality in my dataset. Moreover, I apply this methodology to the study of earnings mobility in Spain, using transition probabilities among earnings quintiles for the period 1985–1996. I find substantial mobility from one year to the next; however, earnings changes are basically among adjacent quintiles. Workers with university education are more mobile than workers with primary and secondary education. On the other hand, I observe greater negative mobility among earnings quintiles and more persistence of low earnings situations in the 1990s, especially for workers with primary education.