Simultaneous estimation of work choices and the level of farm activity using panel data
利用以色列农户面板数据，联合估计工作选择与农场规模，发现部分家庭农场扩大并专业化，另一些则缩小并转向非农就业，导致农场规模分布趋于双峰。
We analyse the simultaneous determination and evolution over time of work choices and the level of farm activity, using a panel of Israeli farm households. We estimate jointly a multinomial choice model of work activity and an endogenous switching regression of farm size, accounting for unobserved heterogeneity and correcting for simultaneity bias. Our results imply that some family farms tend to expand over time and specialise in farming, whereas other farm households downsize their farming operation and increase their engagement in the off-farm labour market. Therefore, the size distribution of farms is converging towards a bimodal distribution.