Retailing Strategies of West African Itinerant Immigrant Traders in Ghana

Livelihood and the risk of HIV/AIDS infection in Ghana: the case of female itinerant traders.

Itinerant trading is the second major economic activity for women who constitute an important chain in the distribution of goods in West Africa. Historically they have played important roles in the political economy of Ghana. With the outbreak of AIDS these women, some of whom move far away from home sometimes for days for even weeks, stand the risk of being infected with HIV through their acti...

Parrondo Strategies for Artificial Traders

On markets with receding prices, artificial noise traders may consider alternatives to buy-and-hold. By simulating variations of the Parrondo strategy, using real data from the Swedish stock market, we produce first indications of a buylow-sell-random Parrondo variation outperforming buy-and-hold. Subject to our assumptions, buy-low-sell-random also outperforms the traditional value and trend i...

Y-chromosome STR haplotypes in Central-West African immigrant in Spain population sample.

Analytically Derived Neighborhoods in a Rapidly Growing West African City: The Case of Accra, Ghana.

Large numbers of people are currently migrating from the poor, inland areas of West Coast Africa to the major cities of Lagos, Accra, Abidjan, and other budding metropolises (Figures 1 and 2). The infrastructure of the Sub-Saharan African cities is inadequate to service their burgeoning populations. An argument is presented for using scientifically derived neighborhoods as the building blocks f...

Optimal Strategies of High Frequency Traders

This paper develops a continuous-time model of the optimal strategies of high-frequency traders (HFTs) to rationalize their pinging activities. Pinging, or the most aggressive fleeting orders, is defined as limit orders submitted inside the bid-ask spread that are cancelled shortly thereafter. The current worry is that HFTs utilize their speed advantage to ping inside the spread to manipulate t...