It is now well established that the volatility of asset returns is time varying and highly persistent. One leading model that is used to represent these features of the data is the stochastic volatility model. The researcher may test for non-stationarity of the volatility process by testing for a unit root in the log-squared time series. This strategy for inference has many advantages, but is n...

After the collapse of the housing bubble in 2007, severe fire sales of assets in the financial sector are accompanied by a rise in the volatility of asset returns in the non-financial firms. To account for their co-movements, I develop a model that highlights the interaction between the financial health of the banking sector and the volatility of asset returns. The novel feature of the model is...

We establish several new findings on the relation between open interest in commodity markets and asset returns. High commodity market activity, as measured by high open-interest growth, predicts high commodity returns and low bond returns. Openinterest growth is a more powerful and robust predictor of commodity returns than other known predictors such as the short rate, the yield spread, the ba...

BACKGROUND Universal health coverage is high on national health agendas of many countries at the moment. Absence of financial hardship is a key component of universal health coverage and should be monitored regularly. However, relevant household survey data, which is traditionally needed for this analysis is not frequently collected in most countries and in some countries, has not been collecte...

today, the human resources are the assets of any organization and their unique role in the development of the organization, whether indoor or outdoor environment and competition is evident. on the other hand, if an organization fails to satisfy its human resources, in this case it would be doomed to stay away from progress and development. in this context, organizations using hrm tools can keep...

Inspecting financial markets from a complex network perspective means to extract relationships and interdependencies from stock price time series. Correlation networks have been shown to adequately capture such dependence structures between financial assets. Moreover, researchers have observed modifications in the correlation structure between stock prices in the face of a market turbulence. Th...

The paper provides a framework for addressing the question of when transactions should be carried out within the firm and when through the market. Following Grossman and Hart (1986), we identify a firm with the assets which its owners control: ownership confers the right to decide how the assets are to be used in events unspecified in an initial contract. We study how changes in ownership affec...