For an analysis for my master thesis I am using a fixed effect regression model. However, I am not very familiar with this kind of analyses. I hope you guys and girls can help me.

lm(Employment ~ SEZ + NumberOfFirms + Education + Wage + Year + as.factor(municipality)-1)
understanding that one dummy for SEZm, Year, or Municipality will be dropped.

*Before I want to perform the analysis, I first want to split the dataset by year (from 2008-2017), because now everything is in a dataset with all years with values together and also for each year whether a municipality has an SEZ or not. I then want to divide that year into (1) or no (0) SEZ, so that you have two groups per year. Which then shows the 'β' and the significance level for each variable (from the formula). I hope this is clear, otherwise I would be happy to provide additional information!