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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

 Copyright (C) 2009 Chris Kenyon

 This file is part of QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/

 QuantLib is free software: you can redistribute it and/or modify it
 under the terms of the QuantLib license.  You should have received a
 copy of the license along with this program; if not, please email
 <quantlib-dev@lists.sf.net>. The license is also available online at

 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE.  See the license for more details.

/*! \file yoyoptionlethelpers.hpp
    \brief helpers for YoY inflation-volatility bootstrap

#ifndef quantlib_yoy_optionlet_helpers_hpp
#define quantlib_yoy_optionlet_helpers_hpp

#include <ql/experimental/inflation/yoyinflationoptionletvolatilitystructure2.hpp>
#include <ql/instruments/inflationcapfloor.hpp>
#include <ql/pricingengines/inflation/inflationcapfloorengines.hpp>
#include <ql/termstructures/bootstraphelper.hpp>

namespace QuantLib {

    //! Year-on-year inflation-volatility bootstrap helper.
00035     class YoYOptionletHelper
        : public BootstrapHelper<YoYOptionletVolatilitySurface> {
                 const Handle<Quote>& price,
                 Real notional, // get the price level right
                                // (e.g. bps = 10,000)
                 YoYInflationCapFloor::Type capFloorType,
                 Period &lag,
                 const DayCounter& yoyDayCounter,
                 const Calendar& paymentCalendar,
                 Natural fixingDays,
                 const boost::shared_ptr<YoYInflationIndex>& index,
                 Rate strike, Size n,
                 const boost::shared_ptr<YoYInflationCapFloorEngine> &pricer);
        void setTermStructure(YoYOptionletVolatilitySurface*);
        Real impliedQuote() const;
        Real notional_; // get the price level right (e.g. bps = 10,000)
        YoYInflationCapFloor::Type capFloorType_;
        Period lag_;
        Natural fixingDays_;
        boost::shared_ptr<YoYInflationIndex> index_;  // VERY important - has
                                                      // nominal & yoy curves
        Rate strike_;
        Size n_;  // how many payments
        DayCounter yoyDayCounter_;
        Calendar calendar_;
        boost::shared_ptr<YoYInflationCapFloorEngine> pricer_;
        // what you make
        boost::shared_ptr<YoYInflationCapFloor> yoyCapFloor_;



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