what is share capital and paid up capital
Share capital In a strict accounting sense, share capital is the nominal value of issued shares (that is, the sum of their par values, as indicated on share certificates). If the allocation price of shares is greater than their par value, e.g. as in a rights issue, the shares are said to be sold at a premium (variously called share premium, additional paid-in capital or paid-in capital in excess of par). Commonly, the share capital is the total of the aforementioned nominal share capital and the premium share capital. Conversely, when shares are issued below par, they are said to be issued at a discount or part-paid.
Capital deepening Capital deepening is a situation where the capital per worker is increasing in the economy.[1] This is also referred to as increase in the capital intensity. Capital deepening is often measured by the rate of change in capital stock per labour hour. Overall, the economy will expand, and productivity per worker will increase. However, according to some economic models, such as the Solow model, economic expansion will not continue indefinitely through capital deepening alone. This is partly due to diminishing returns and wear & tear (depreciation). Investment is also required to increase the amount of capital available to each worker in the system and thus increase the ratio of capital to labour. In other economic models, for example, the AK model or some models in endogenous growth theory, capital deepening can lead to sustained economic growth even without technological progress. Traditionally, in development economics, capital deepening is seen as a necessary but not sufficient condition for economic development of a country.