Brighton Toy and Model Museum arches and contains a large 1930s 0 gauge model railway layout, 00 gauge model railway town and countryside layouts, and collections of model locomotives, soft toys, puppets and marionettes, construction toys, building construction sets, model ships, radio controlled model aircraft, and farm, circus, zoo and ship toy sets. It also includes displays of diecast models including Matchbox, Dinky Toys, Corgi Toys and Spot-On. Exhibition displays draw on outside guest collections and on varying selections taken from the Museum's core collection. The museum is a venue for the Brighton Science Festival and the Brighton Fringe. Public train running days are typically
Black–Derman–Toy model Black–Derman–Toy model In mathematical finance, the Black–Derman–Toy model (BDT) is a popular short rate model used in the pricing of bond options, swaptions and other interest rate derivatives; see Lattice model (finance) #Interest rate derivatives. It is a one-factor model; that is, a single stochastic factor—the short rate—determines the future evolution of all interest rates. It was the first model to combine the mean-reverting behaviour of the short rate with the lognormal distribution, and is still widely used. The model was introduced by Fischer Black, Emanuel Derman, and Bill Toy. It was first developed for in-house use by Goldman Sachs