International Trade with Lumpy Countries by Paul N. Courant and Alan V. Deardorff The University of Michigan This paper explores the implications for the pattern of international trade of various differences among regions within countries-what we call lumpiness. It is shown first that if factors of production are immobile among regions, and if they are sufficiently unevenly distributed across t...

Blasting lumpiness prediction is one of the most important research contents in engineering blasting. Although traditional KUZ-RAM model widely used, it often overestimates size Therefore, was updated or corrected this paper by simplifying difficult problem statistical burst fragmentation LS-DYNA. Based on theory area measurement method, fitting mechanism machine learning used to study simulati...

Occurrence of chaotic behaviors because of fluctuations creation and their intensified transfer along the chain is one of the main causes of inefficiency of Material Requirements Planning (MRP) based supply chains. One of the reasons of the inefficiency is the lumpiness phenomenon. Through this phenomenon, some parts have an irregular production schedule, with nothing produced in some periods a...

This paper addresses the empirical question whether the regional distribution of production factors within countries is ever so uneven that it triggers specialization of production that makes regions produce different sets of goods at different factor prices. Due to the different welfare effects of trade policy in a country with regional specialization, this is an important question. In additio...

occurrence of chaotic behaviors because of fluctuations creation and their intensified transfer along the chain is one of the main causes of inefficiency of material requirements planning (mrp) based supply chains. one of the reasons of the inefficiency is the lumpiness phenomenon. through this phenomenon, some parts have an irregular production schedule, with nothing produced in some periods a...

This paper presents a framework to help decisions makers better measure the opportunity cost of resources with differing economic characteristics. After characterizing resources by the intrinsic lumpiness of acquisition (acquisition granularity), storability of benefits (expiration granularity), and control over the rate of consumption of available benefits (consumption granularity), this paper...