1)Is macroeconomic policy more an art than a science?

2)How was the study on the effect of El Ni o on macroeconomics conducted?

3)What is the best way to explain the production function equation to AP macroeconomics students as it relates to GDP?

1)In economics, science refers to the study of nature and behavior of human beings and other factors that influence an economy to work and the information we obtained from them.

Art is something which makes you different from anyone else. It is the creativity which goes on increasing with an increase in the interest. In economics, Art is the creation of new policies or ideas which can positively affect an economy.

Economics is a combination of both arts and science. But when talking about macroeconomics, it is more arts than science.

Sometimes, the macroeconomic scenario fails to meet the facts that define it as a science because many time theories do not work at an aggregate level. One of the most suited examples is the great recession where macroeconomic theories have no control over the situation.

Macroeconomics is an art majorly, as it goes on changing due to the changing scenario. It adds up new things to the earlier made theories and makes it more simplified to understand an economy.

Art is something which can be changed with the change in the situation; whereas, in the case of science, there is always rigidity in the scientific facts.

2)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.

3)The most efficient way to explain the production function mechanism is by use of the relationship between demand and supply.

People work or invest intending to make an income, and also why work without getting any returns. Therefore, the first step is ensuring that the consumers or the purchasers of goods and services got cash to buy them. Implementation of this idea requires governments and financial institutions to intervene by inducing cash flow in the economy. This process occurs through banks giving out loans or dividends and increased government expenditure on infrastructures, education, among other programs.

That way, the consumers get money to purchase commodities (aggregate demand) while investor's gains the capital to cater for production cost. As a result, enterprises are in a position to increase production output to satisfy the demand in the market. The same way does much workmanship is in need. Therefore, the employment rate rises and many people become financially stable. Besides, aggregate demand continues to rise as average supply increases.