the classical etiology of erectile dysfunction (ed) comprises aging and vascular, neurogenic, psychological and hormonal components. recent studies have shown that ed can be the forerunner of serious cardiovascular disturbances. it has also been reported that peripheral neuropathy and microvascular injuries caused by pathophysiological changes in patients with diabetes and obesity lead to ed in...

Land is back. The increase in wealth the second half of 20th century arose from housing and land. It should be taxed. We introduce land structures Judd’s standard setup: first best optimal taxation achieved with a property tax on requires no capital. With positive taxes rents, still possible but subsidies to rental investments, either differential rates or imputed rents. can Even absent taxes, ...