Abstract Export promotion at the extensive margin is a key concern of governments. We develop measures how far firms in origin sectors are from break-even entry destination markets. The measure based on Almost Ideal gravity featuring heterogeneous price and income elasticities. Tobit estimation 2006 trade flows for 75 countries 25 generates Latent Trade Bias (LTB) – latent (projected) share non...

Ours is an era in which patients seek greater engagement in health care choices, increasing the demand for high-quality information about clinical options. Providing support for informed choice is not straightforward, however, because of challenges faced by clinicians, health systems, and consumers. Greater use of written or electronic tools can help to clarify choices for patients, but decisio...

The human body has a complex system of innate and adaptive mechanisms for combating infection. This article discusses the role and relative effectiveness of these mechanisms in relation to small pox and AIDS. Keywords—AIDS, Immune System, Small Pox, Viral Infections.

In 2014, México imposed a 20% price hike on sugar-sweetened beverages (SSB) to curb its obesity epidemic, paving the road for other Latin-American countries adopt similar measures. This paper estimates beverage demand system with censored Quadratic Almost Ideal Demand system. Our study finds that tax SSB can reduce consumption between 16.6% and 19.0%. Additionally, increase is associated increa...

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This paper investigates the effect of price variations on the diet composition in Britain. It describes the dynamics of food demand in relation to food prices over time using data from the British National Food Survey (NFS) covering the period 1975-2000. Demand elasticities with respect to price elasticities are estimated by solving a quadratic almost ideal demand system (QUAIDS) model controll...

image retrieval is an important research field which has received great attention in the last decades. in this paper, we present an approach for the image retrieval based on the combination of text-based and content-based features. for text-based features, keywords and for content-based features, color and texture features have been used. query in this system contains some keywords and an input...