Fitting a nonlinear Phillips curve. The original Phillips curve dates back to Phillips (1958), who documented a nonlinear link between nominal wage growth and unemployment in the United Kingdom from ...

Nonlinear regression uses logarithmic functions, trigonometric functions, exponential functions, power functions, Lorenz curves, Gaussian functions, and other fitting methods. Key Takeaways ...

This version shows that the new data on unemployment and job vacancy rates for June 2023 through December 2023 (dark blue dots) have remained very close to the nonlinear Beveridge curve. That curve is ...