MOHAN NAIDU, G.TAMILSELVI, C2021-09-082021-09-082021-09-08https://krishikosh.egranth.ac.in/handle/1/5810175371BEHAVIOUR OF PRICES AND ARRIVALS OF MAJOR VEGETABLES IN SELECTED MARKETS OF TAMIL NADUThe present study entitled “Behaviour of Prices and Arrivals of Major Vegetables in Selected markets of Tamil Nadu” was mainly aimed at to study the secular trend, seasonal indices, cyclic variation, irregular variation, association and to forecast the arrivals and prices by best fitted model. Four major vegetable markets viz., Chennai Koyambedu market, Oddanchatram Gandhi market, Madurai Paravai market and Coimbatore wholesale market for three highly consumed vegetables (onion, tomato and Green chillies) are considered for this study. The secondary data on monthly modal prices (Rs/qtl) and total monthly arrivals (qtls) were collected from respective market Committee for the period of 8 years (2011 to 2018). The trend in the data was studied by the principle of least square. For evaluation of seasonality in arrivals and prices, Multiplicative time series analysis, twelve month moving average have been calculated. In Koyembedu market, tomato arrivals and prices were loftier in the month of November; onion arrivals were maximum in the month of February whereas the prices were on hike in the month of September; chillies arrivals were high in the month of November whereas prices reached its peak in the month of June. In Oddanchatram market, tomato arrivals were loftier in the month of March whereas peak prices were observed in the month of July; onion arrivals were maximum in the month of March and the prices were on hike in the month of October; chillies arrivals were high in the month of March whereas prices reached its peak in the month of March. In Paravai market, tomato arrivals and prices were loftier in the month of November; onion arrivals were maximum in the month of May whereas prices were on hike in the month of October; chillies arrivals were high in the month of February whereas prices reached its peak in the month of July. In Coimbatore market, the tomato arrivals were loftier in the month of December whereas peak prices were observed in the month of June; onion arrivals were maximum in the month of January and the prices were on hike in the month of November; chillies arrivals were high in the month of November whereas prices reached its peak in the month of March. xvii To ascertain the relationship between arrivals and prices in respective market, correlation coefficient was computed. There was a negative and significant correlation between arrivals and prices of Chillies in Koyembedu market; Onion in Oddanchatram market; Tomato in Paravai market and Coimbatore vegetable Market. It was inferred infers that the negative correlation existed between arrivals and prices for all vegetables in their respective markets except tomato in Koyembedu and Paravai markets. Seasonal Auto Regressive Integrated Moving Average models were used for forecasting the arrivals and prices. At the identification stage, one or more models are tentatively chosen and the most suitable models were selected based on highest R2 and least RMSE. The predicted values and actual values were similar to each other in most of the cases.EnglishThesis