An economic effect of migration in Israel can be the price of taxes. Israel's value-added tax is 17%. This is much higher than, let's say, Florida's state tax of 6%. Since the value-added tax is so high, some Israelis may migrate to areas with a much lower tax rate.
The social effect of migration in Israel can be tied to a more religious aspect. Arabs and Israelis have had and continue to have conflicts over the years. One famous conflict that occurred happened in 1948 was the Arab-Israeli War. This war broke out once Israel became independent. Since then, the tension between Arabs and Israelis is still there, which could be an effect of Israelis wanting to leave Israel.
The political effect of migration in Israel could be tied to the lack of peace with surrounding Arab countries and Israel. Israel has only two full diplomatic relations with Egypt and Jordan, where peace treaties were signed in 1979 and 1994. The lack of peace between the surrounding Arab countries could make Israelis feel unsafe.
An environmental effect of migration in Israel could be because there's a lack of rainfall in Israel, which could negatively affect crops. On average, Israel receives about 20 inches of rain per year, but there are severe summer water shortages where, in some cases, rainfall is less than normal. One of the main problems facing agriculture in Israel is water scarcity. The scarcity of water could cause Israelis to migrate out of the areas that don't receive the water needed to produce crops.