AMS classifications; 05C50; 05E30;

This is a study to investigate the exchange rate volatility and it impacts on international trade growth: evidence from Bangladesh. To establish the empirical relationship between exchange rate volatility and impact on international trade growth in Bangladesh, different quantitative techniques...

This paper introduces an extension of the vehicle routing problem by including several distributors in competition. Each customer is characterized by demand and a wholesale price. Under this scenario a solution may have unserviced customers and elementary routes with no customer visits. The...

Let k be a natural number and let G be a graph with at least k vertices. A.E. Brouwer conjectured that the sum of the k largest Laplacian eigenvalues of G is at most e(G) (k choose 2), where e(G) is the number of edges of G. We prove this conjecture for k = 2. We also show that if G is a tree,...

The present article is designed to be a contribution to the chapter 'Combinatorial Matrix Theory and Graphs' of the Handbook of Linear Algebra, to be published by CRC Press. The format of the handbook is to give just definitions, theorems, and examples; no proofs. In the five sections given...

AMS classifications: 05E30; 51E12

In this and an earlier paper [17] we study combinatorial designs whose incidence matrix has two distinct singular values.These generalize (v, k, ë) designs, and include uniform multiplicative designs and partial geometric designs.Here we study the latter, which are precisely the designs with...

No abstract

This study investigates the relationship between institutional ownership and dividend payout behavior of the firm in Germany. Using a propensity scoring method estimator to control for endogeneity problems, we find evidence that neither institutional ownership nor bank control is statistically...