Timbers of multiple tree species and sizes are often traded in a single market. Some previous studies have empirically examined their price interdependences, but the drivers such relationships remain unclear. I demonstrated with rational expectations model that when timbers two (or sizes) were gross substitutes production, steady-state ratio between prices was dependent on relative quality ease...

Chinese characters that are similar in their pronunciations or in their internal structures are useful for computer-assisted language learning and for psycholinguistic studies. Although it is possible for us to employ imagebased methods to identify visually similar characters, the resulting computational costs can be very high. We propose methods for identifying visually similar Chinese charact...