The recently introduced Reverse Jacket matrix (RJM) has a generalized form of the Hadamard matrix. Thus the RJM is closely related to the matrix for a fast Fourier transform (FFT). It also has a very interesting structure, i.e., its inverse can be easily obtained and has the reversal form of the...

In this paper, the previous definition of the Reverse Jacket matrix (RJM) is revised and generalized. In particular, it is shown that the inverse of the RJM can be obtained easily by a constructive approach similar to that used for the RJM itself. As new results, some useful properties of RJMs,...

This paper analyzes the determinants of different types of imported goods. We develop a model in which final good and intermediate good sectors require imported intermediate inputs for production. Our model shows that all types of imported goods are commonly affected by transportation costs...