in the present paper, we prove subordination, superordination and sandwich-type properties of a certain integral operators for univalent functions on open unit disc, moreover the special behavior of this class is investigated.

The consumer price index (CPI) is an important indicator of inflation in a market economy. It is necessary to regularly monitor and improve the quality of the CPI. Before one can develop a quality assurance system, one has to formulate a conceptual framework for evaluating the quality of consumer price statistics. In this paper various quality aspects of the CPI are presented. These aspects are...

Inflation, which has many costs to the economy, also extremely important on tax system and financial system. Inflation is known have an impact real income levels burden, as well influencing economic decisions. On other hand, practices of government play a role in formation cost inflation. In this framework, multifaceted nature relationship between inflation taxes for all components economy. our...

The fundamentals of an exchange economy, the preferences of individuals, can be identified from the competitive equilibrium correspondence, which associates equilibrium prices of commodities to allocations of endowments; the argument extends to production economies. The essential step is the identification of fundamentals from aggregate demand as a function of the prices of commodities and the ...

We study identification of combinatorial valuations from aggregate demand. Each utility function takes as arguments subsets or, alternatively, quantities of the multiple goods. We exploit mathematical insights from auction theory to generically identify the distribution of utility functions. In our setting, aggregate demand for each item is observable while demand for bundles is not. Neverthele...

Assuming preferences to be generated by an aggregate utility function, an aggregate demand function for imports and exports is defined as a function of import and export prices and the deficit in the balance of payments on current account, in a model with nontradable as well as traded goods. It is shown that this function is integrable, hence can be generated by maximizing a utility function (w...

We investigate the issue of whether there was a stable money demand function for Japan in 1990's using both aggregate and disaggregate time series data. The aggregate data appears to support the contention that there was no stable money demand function. The disaggregate data shows that there was a stable money demand function. Neither was there any indication of the presence of liquidity trap. ...