Exterior view of Martin Goldschmidt's business; Kurfuerstendamm 34, Berlin W.15 Portraits Men

Born 1879?; Married September 2, 1903 in Leipzig to Paula Harmelin; Father of Henry H. Goldschmidt Gould and Ruth Augusta Beatrice Goldschmidt

Martin Goldschmidt reading on a park bench Portraits Men

Handwritten postcard addressed to Ruth Goldschmidt in Italy and dated 1937 from Zurich

Ruth Augusta Beatrice Goldschmidt with her parents Paula Goldschmidt née Harmelin and Martin Goldschmidt, walking on the street outside the Richmond Park Hotel; Karlsbad Portraits Family

Paula Goldschmidt, née Harmelin, born 1880; Martin Goldschmidt, born circa 1879; Ruth Augusta Beatrice Goldschmidt, born 1923?

Yasha and Riva outside their lighting store; Martin Luter Strasse, Berlin Portraits Couples

Relatives of the Judey-Barosin and Finkel families

Martin Buber with Naemah Beer-Hofmann Portraits Groups

Handwritten on verso: Prof. Martin Buber mit Naemah Beer-Hofmann in meinem Zimmer, Kurhaus Sonn-Matt bei Luzern. September 1963 fuer meine leibe Lily an einem schweren Tag, der durch sie viel leichter wurde.

Painting of Freiherr Martin von Magnus Family Portraits Family

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Analysis of the distribution of the number of bidders in construction contract auctions

The number of bidders, N, involved in a construction procurement auction is known to have an important effect on the value of the lowest bid and the mark up applied by bidders. In practice, for example, it is important for a bidder to have a good estimate of N when bidding for a current contract. One approach, instigated by Friedman in 1956, is to make such an estimate by statistical analysis and modelling. Since then, however, finding a suitable model for N has been an enduring problem for researchers and, despite intensive research activity in the subsequent thirty years little progress has been made - due principally to the absence of new ideas and perspectives. This paper resumes the debate by checking old assumptions, providing new evidence relating to concomitant variables and proposing a new model. In doing this and in order to assure universality, a novel approach is developed and tested by using a unique set of twelve construction tender databases from four continents. This shows the new model provides a significant advancement on previous versions. Several new research questions are also posed and other approaches identified for future study.

Improving the estimation of probability of bidder participation in procurement auctions

Anticipating the number and identity of bidders has significant influence in many theoretical results of the auction itself and bidders’ bidding behaviour. This is because when a bidder knows in advance which specific bidders are likely competitors, this knowledge gives a company a head start when setting the bid price. However, despite these competitive implications, most previous studies have focused almost entirely on forecasting the number of bidders and only a few authors have dealt with the identity dimension qualitatively. Using a case study with immediate real-life applications, this paper develops a method for estimating every potential bidder’s probability of participating in a future auction as a function of the tender economic size removing the bias caused by the contract size opportunities distribution. This way, a bidder or auctioner will be able to estimate the likelihood of a specific group of key, previously identified bidders in a future tender.

Martin Riesenburger portrait portraits men

Martin Riesenburger (May 14, 1896 – Apr. 14, 1966) was Prediger (Preacher) for the Jewish community in Berlin-Weissensee throughout the Nazi era (protected by his gentile wife, Natalie Riesenburger). In 1953 he became Rabbi of the Jewish community in Berlin (East) and then Landesrabbiner of the German Democratic Republic.

Wedding portrait of Martin and Lotte Lewin Portraits Couples

Handwritten thank you note under photograph signed by Lotte Lewin dated February 6, 1935

Yasha and Riva outside their lighting store; Martin Luter Strasse, Berlin Portraits Couples

Relatives of the Judey-Barosin and Finkel families

Silver locket-style photograph frame containing portraits of Martin Wasserzug and Gaby Netter (later Glueckselig) Portraits Couples

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Martin Goldschmidt taking a morning walk and eating breakfast with the "Lavanguardia" newspaper; Barcelona Portraits Men

Born 1879?; Married September 2, 1903 in Leipzig to Paula Harmelin; Father of Henry H. Goldschmidt Gould and Ruth Augusta Beatrice Goldschmidt

Martin Goldschmidt and Paula Goldschmidt née Harmelin; Leipzig Portraits Couples

Paula Goldschmidt, née Harmelin, born 1880; Martin Goldschmidt, born circa 1879; Married September 2, 1903 in Leipzig

Studio portraits of Martin Goldschmidt Portraits Men

Born 1879?; Married September 2, 1903 in Leipzig to Paula Harmelin; Father of Henry H. Goldschmidt Gould and Ruth Augusta Beatrice Goldschmidt