The option pricing model introduced by Black-Scholes in 1974 gained wide acceptance for its simplicity but was inefficient in pricing options as it relied on implied volatility. Despite the evolution of various versions of option pricing models since their seminal work, little progress had been documented on the use of implied volatility, leaving Black-Scholes to be a mathematical identity to calculate the instantaneous implied volatility as it fails to be an efficient pricing equation. Although interpreted as market expectation of future volatility of stocks, implied volatility is literally a black box that captures market information that is not specifically known yet also internally inconsistent (e.g., having a different implied volatility surface for put and call options). The four main objectives of this thesis are: first, to empirically studying the performance of the Oscillator model developed by Baaquie (2019) and examining its efficiency in pricing options as compared to Black-Scholes model. The Oscillator model has only two sets of parameters in addition to the classical form of Black-Scholes; one to model for the underlying stochastic evolution of the stock price, and the second are of market time. Market time is a behavioural parameter introduced by Baaquie and Bouchaud (2004) which scales the time to maturity to capture the market sentiment of the underlying instrument. This thesis also introduced an alternative version of Black-Scholes by adjusting it for market time. Second, the thesis tested the put-call parity violation. Third, the thesis tested three main option hedging Greeks; Delta, Gamma, and Theta, which are partial differentiations of the option pricing equation. Fourth, the thesis discussed the calibrated output and parameters' behaviour to provide insights into the implied volatility information content and gain new understanding of the parametric gap of Black-Scholes particularly in the light of the Oscillator and Black-Scholes models adjusted for market time.

Microfinance institutions (MFIs) in Bangladesh have been providing savings services to their clients at least for the past 15 years. However, whether an MFI should have institutional requirement(s) to be a deposit-taker generates interest among academics and policy makers. Thus, this short note aims to provide a brief overview of institutional properties of MFIs. This study used the existing literature and reports by the Microcredit Regulatory Authority' to investigate institutional properties of MFIs. In doing so, we have used 'institutional theory of saving' as a theoretical ground. Although the 'institutional theory of saving' has several important properties, the existing literature mostly discusses seven features such as information, incentives, facilitation, expectation, access, restrictions and security. It is found that MFIs in general should have all the seven important institutional properties to be considered as an ideal savings institution. With regards to the microfinance sector in Bangladesh, this study supports that all the NGO-MFIs have these properties to be considered as an ideal deposit taker. The microfinance sector in Bangladesh needs to design and develop comprehensive and customer friendly savings products to further motivate the poor to save in MFIs.

Algeria depends solely on publicly produced housing. Algeria's housing industry has been lagging behind in its development. This has caused many citizens to struggle with finding proper housing. Aside from being one of the highest countries in terms of rent rates, construction and distribution of public houses in Algeria takes more than 15 years of waiting. Despite that the quality of the housing is bad. This paper proposes Shari'ah-compliant housing certificates, a new Islamic financial instrument that would assist in house construction in Algeria. This instrument uses istisna' as the underlying contract and accommodates guaranteed returns as well as negotiability for investors. It has great potential in contributing to solving the prolonged problem of housing in Algeria as well as countries facing problems in financing the construction of housing.