This PhD thesis, entitled "Essays in Empirical Studies Based on Administrative Labour Market Data", is composed of three independent chapters, a general introduction for all three chapters at the beginning, and a brief conclusion in the end. While all three chapters are independent research...

Intro to operators, probabilities, and linear model -- Lp-approximable sequences of vectors -- Convergence of linear and quadratic forms -- Regressions with slowly varying regressors -- Spatial models -- Convergence almost everywhere -- Nonlinear models -- Tools for vector autoregressions