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The study measures the degree of competition in the banking industry in Palestine for the period from 2006 to 2010. It begins by measuring Lerner index, and then estimates the determinants of market power by regressing Lerner index on returns of assets and lending preferences. It uses data on 18 working banks in Palestine; the data is secondary, time-series and cross-sectional obtained by the Association of Banks in Palestine. The study establishes the log-log model for estimation and tests the variables according to the Ordinary Least Square method. The study concludes that the banking industry in Palestine is controlled by a few players, the assets concentration ratio is about 75%. About 72% of the working banks can raise the price above the marginal cost, and then able to earn profits.

The study is aimed at investigating the environmental and economic impacts of paper consumption and computers used in the banking sector operating in Palestine. The descriptive and quantitative method has been used, and the data was annual covering the period 2016-2018. The study has found out that the total cost of using paper in banks operating in Palestine was about 3.24 million dollars since the banks consume about 658.4 tons of paper as it is necessary to produce this amount of paper to about 16 thousand pine trees, 25 million btus of energy, and 13.5 million gallons. As for the total costs of using computers in the banks operating in Palestine, they amounted to about 7.6 million US dollars, and about 122 tons of different minerals and materials are required to manufacture computers in the banks in Palestine. About 1.52 GW per year is required to operate all computers, which causes the release of greenhouse gases equivalent to the consumption of 2495 barrels of oil.