NO.PZ2022123001000133
问题如下：
Jill Batten wants to study the relationships between Stellar monthly common stock returns and the previous month’s percentage change in the US Consumer Price Index for Energy (CPIENG). He runs a regression analysis using Stellar monthly returns as the dependent variable and the monthly change in CPIENG as the independent variable. Which of the following best describes Batten’s regression?
选项：
A.Time-series regression B.Cross-sectional regression C.Time-series and cross-sectional regression解释：
The data are observations over time.
用的是两家公司的不同时间的数据 为什么不也是cross-sectional呢
