The word E1 Ni in the question is E1 Nino. There was a misprint problem.

For assessing the effects of E1Nino on macroeconomics, the number of papers was conducted that included frameworks of many countries for analyzing the international macroeconomic transmission of weather shocks.

These papers were based on the particular country, industry, and commodity market in which time series, panel data, and factor analysis techniques were included to assess the relationship between economic interlink ages and spillovers of different regions. These papers described many aspects of the effect of E1 Nino on the macroeconomic level.