Juglans venezuelensis Juglans venezuelensis Juglans venezuelensis, or "nogal de Caracas", is a species of black walnut endemic to Venezuela. It is a small tree which bears 1 inch nuts. This species is deciduous, with a period of leaf fall between November and December, and a period of regrowth of leaves between January and February. Flowering begins in late February. The species is monoecious, male flowers are hanging catkins and female ones are erect, both are small and greenish. The fruits are drupes with yellow epicarp and abundant pubescence. The fruit is about 3 inches diameter and 1.5 cm walnut, weighing 150 grams
Two-sided market to invest more in R&D or lower their prices, driving out weaker rivals. As a result, mature two-sided network industries are usually dominated by a handful of large platforms, as is the case in the credit card industry. In extreme situations, such as PC operating systems, a single company emerges as the winner, taking almost all of the market. Platform managers must choose the right price to charge each group in a two-sided network and ignoring network effects can lead to mistakes. In "figure 2", pricing without taking network effects into account means finding prices that maximize the areas of