Could you please elaborate on the concept of the wealth tax in France? I'm particularly interested in understanding how it works, who is subject to it, and what types of assets are taxed under this system. Additionally, I'd like to know if there are any exemptions or deductions available and how the tax rate is determined. Also, could you provide some insights into the reasons behind its implementation and its overall impact on the French economy? Thank you for your assistance in clarifying this matter.