A set of three bacteriophages (phi K5, phi K20, and phi K95) was used to discriminate between Escherichia coli K5 and K95 strains isolated from patients with urinary tract infections. All the strains tested were detected primarily by phi K5 and thought to carry the capsular antigen K5. Ten O2, 33 O6, and 32 O18 strains proved to be sensitive to the three phages. Eleven of 44 O75:H- strains, all...

Shadow Economies and Corruption All Over the World: What Do We Really Know? Estimations of the size and development of the shadow economy for 145 countries, including developing, transition and highly developed OECD economies over the period 1999 to 2003 are presented. The average size of the shadow economy (as a percent of “official” GDP) in 2002/03 in 96 developing countries is 38.7%, in 25 t...

The colonial experience of developing countries provides valuable evidence regarding the impact of legal and institutional innovations on economic growth. However, there has been little effort by economists to study colonial policies to gain theoretical insights into the process of institutional reform. This paper considers the introduction of civil courts in colonial India and its impact on ag...

We have examined the mechanism of thalidomide inhibition of lipopolysaccharide (LPS)-induced tumor necrosis factor ot (TNF<~) production and found that the drug enhances the degradation of TNF-oe mRNA. Thus, the half-life of the molecule was reduced from "o30 to ~o17 rain in the presence of 50/zg/ml of thalidomide. Inhibition of TNF-ot production was selective, as other LPS-induced monocyte cyt...

Using a simple two-firm, two-period model, we analyze for a developing economy the process of entrepreneurial entry, that is, entry by new firms into an industry that did not previously exist in that country, focusing on the choice between formal and informal status. Thus we explore issues such as how informality may enable an entrepreneur to test the profitability of an industry without incurr...

We consider the selection properties of a competitive bribery model in the presence of two types of asymmetry: unevenness between the competitors and unfairness in the contest rules. Only under very special conditions does the benchmark model yield allocation efficiency; in other cases, the effect on allocation efficiency of making the contest more unfair is ambiguous and parameter specific. We...

A model of “harassment bribes,” paid for services one is entitled to, is developed to analyze the proposal to legalize paying these bribes while increasing fines on accepting them. We explore performance as regards corruption deterrence and public service provision. Costs of verifying reports make the scheme more effective against larger bribes and where institutions’ quality is higher. A modif...

This paper reconsiders the predominant typology pioneered by Baumol (1990) among productive, unproductive and destructive entrepreneurship. It is shown that the foundation of Baumol’s classificatory scheme is the restrictive concept of first-best outcomes, and therefore it easily fails to appreciate the true impact of entrepreneurship in real world circumstances characterized by suboptimal inst...