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Businesses implement various strategies in order to achieve their goals and gain competitive advantage.In this book, the main ones of these strategies are tried to be explained with case studies.

The natural disasters that are occurring today or that will occur in the future as a result of climate change will lead to collective mass migration. With global warming and the climate change it generates, events such as droughts, storms, floods, air and water pollution, and an increase in sea levels, will regularly occur. The natural disasters to emerge due to climate change will precipitate large-scale population movements. The concept of climate refugees was developed on the basis of these ecological problems. Based on the change in needs of individuals and societies, the field of social policy has been extended to include the issues experienced due to climate change. This study aims to address the legal status of climate refugees who migrate due to climate change and the problems caused by climate changes.

This book is devoted to study multidimensional linear and nonlinear partial differential equations. Among several methods to deal with higher dimensional linear partial differential equations, the elegant method of Spherical Means has spacial importance since this method reduces the higher dimensional equations to the one dimensional radial equations of Euler-Poisson-Darboux type which are well studied. Although this method is applicable only to the linear differential equations, by some special transformations, like the Cole-Hopf transformation and the Backlaund transformation, exact solutions of multidimensional nonlinear partial differential equations of the Spherical Liouville, Sine- Gordon and Burgers type are constructed.